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Meanwhile, the concentration of Pb,Zn and other heavy metals is rather high in the oxidation zone and decreasesdownward to levels that are unbelievably low for Pb-Zn mine tailings. Theseobservations suggest that heavy metals should be re-immobilized by secondaryminerals, rather than primary minerals, in the oxidation zone, and could be leachedout from suboxic environment due to low rate oxidative dissolution which preventsthe precipitation of secondary minerals in significant amount. Thus, cover scenarioswhich establish a suboxic environment beneath the cover layer might not always beeffective in preventing heavy metal release from mine tailings.Sequential extraction studies indicate that, in addition to heavy metal leaching,oxidation of the mine tailings increased the mobility of residual Zn, and Cu, while Pb remains immobile due to the formation of anglesite (PbSO4). Using the seven-step extraction technique developed by Dold (J. Geochem. Explor., 2003, 80: 55-68), galena dissolves in significant amount at step 2 most probably due to the strong complexing of Pb2+ by acetate, while other metal sulfides dissolve at step 6, which suggest that this extraction technique could not be used to evaluate the mobility of lead in natural environment
重金属含量均低于新鲜尾矿,但以硬化层中的含量最高(Pb、Zn含量分别为0.47%和0.93%),往下大幅度降低,表明尾矿风化过程中形成的次生矿物对Pb、Zn等重金属元素有较强的固定作用,而次氧化带的淋溶作用造成了金属元素的大量流失;(4)与新鲜尾矿相比,硬化层中铅的可迁移性大大降低,硬化层之下尾矿样品中铅的可迁移性也不同程度降低,这是由于硫化物氧化产生的硫酸根与尾矿中的铅反应形成铅矾(PbSO_4)的缘故;(5)氧化作用使尾矿中的zn、Cu等重金属的可迁移性不同程度地增大,其中对锌的可迁移性影响最大,铜的可迁移性与铁比较相似,铅则容易与硫化物氧化形成的SO_4~(2-)反应形成铅矾(PbSO_4);(6)为了减少尾矿污染和修复矿山环境,人们提出了各种不同的尾矿覆盖方案,本文的研究结果表明,这些方法不一定能够有效地阻滞污染元素的迁移。
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Adjustments of Second-hand housing policy reduce the deal cost, boosting buyers' expectations; In addition, such change may increase the liquidity of housing, which will speed up investment in new housing and shops. However, the price continue to drop, especially when the new year is coming, more shop investors keep waiting and seeing due to the financial crisis, macro news. Basing on the demand point of view, some demand for living improvement delay the bargain, so did demand for investment due to bad profit-making. As a result, the demand is difficult to start up, while the supply funds is not sufficient, therefore such commercial real estate enterprises will be out of the market due to their inability to meet the finance crisis. Under competitive pressures, the developers will pay more attention to products quality and products differentiation with a view to compete in the market to get a dominant position.
二手房政策的调整降低了购房者的购房成本,刺激了购房期望;另外,二手房政策的改变可能会增加房源的流动性,这样也会加速新房的销售,商铺投资逐渐活跃,但价格表现却成下行趋势,尤其是年关临近,在金融危机面前,商铺投资者多持币观望,从需求者的角度讲,部分改善型需求和投资型需求的购买行为将向后推迟,炒房者将因投机能力下降而不同程度地退出市场,另外,需求难以启动,供给方资金链紧张,部分自有资金不充裕的商业地产企业将面临因无力融资而退出市场的风险,企业因竞争压力大,将更加注重开发产品的品质,提供差异化的产品,以期在市场竞争中占得优势地位。
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The conventional "fundamental" explanation for that cycle relates it to political events. The 1973-1974 oil crisis is said to have been due to the cutoff of oil following the Arab-Israeli Yom Kippur War. The 1979-1981 oil crisis is said to reflect the cutoff in oil due to the Iranian Revolution and the Iran-Iraq war. The drop in oil prices after the mid-1980's is said to be due to the collapse of the OPEC oil cartel.
对这个周期的传统的"基本"解释是将它和政治事件联系起来。1973-1974年的石油危机据说是因为阿拉伯-以色列赎罪日战争之后的石油停产。1979-1981年的石油危机据说反映了因为伊朗革命和伊朗-伊拉克战争导致的石油停产。20世纪80年代中期的石油价格下跌据说是因为欧佩克石油卡特尔的崩溃。
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Examples include errors due to the misidentification of an object (e.g. a tower for a mast, a tree for a pole, a road for a railroad); errors due to misclassification of a theme e.g.
例子包括由于物体未识别产生的错误;由于主题未识别的错误;由于不正确附属物的错误;这些粗心错误会影响 AMDB 的一致性和可靠性。
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The main research work and its results are: 1Empirical results are analysed for the relations of fault displacement and earthquake magnitude, and difference between permanent ground deformation and maxium dynamic relative displacement on the two sides of fault; 2An analytic method is proposed for resopnse of a buried pipeline due to earthquake fault movement; 3A new shell model with an equivalent boundary and relted finite element analysis method are proposed for estimating response of a buried pipeline under large fault movement; 4By the proposed method, damage performance of water supply steel pipelines with large diameter is simulated to the real cases in Kocaeli Earthquake and Ji-Ji Earthquake, and simulating results show the real failure mode of pipes is revealed; 5Effects of overlying soil and soft/hard interlayers are analyzed on ground rupture mode and degree due to earthquake fault, and some earthquake rupture phenomena in soil layers are theoretically described for the first time; 6Pipeline response characters are discussed for the case of considering effects of soil layers on ground rupture mode; 7Research results and proposed method are applied in seismic analysis of pipline acrossing fault in the Gas Tansportation Project from West to East in China.
主要工作和成果包括:1)分析了不同断层位错形式下地表破裂位错量与震级之间的经验关系,并基于集集地震近断层记录分析了断层两侧永久地面变形和地震动相对位移幅值之间的差别,为合理地考虑地震断层位错地面变形动态影响提供了依据;2)发展了断层位错地面大变形下管线反应分析模型并给出物理概念明确、简单实用的解析分析方法;3)建立了断层位错下埋地管线反应分析的等效边界壳模型有限元方法,方法中引入了以非线性弹簧形式模拟离断层较远处管段影响的等效边界,简化了计算模型并突出了近断层处管体反应;4)利用等效边界壳模型方法,对土耳其地震和集集地震中大口径埋地管线震害进行了模拟,结果表明所提方法可以更清地解释震害所表现的管体破坏特征;5)研究了覆盖土层和软硬夹层的存在对断层位错地面破裂形式和程度的影响,首次从理论上解释了某些地震地表破裂现象;6)探讨了考虑土层对断层位错地面变形影响的管体反应特征;7)本项目成果已在西气东输工程的管道跨断层抗震问题分析中得到了应用。
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The C, in relation to Cw and Cd, was obtained with the consultable value of 0.178 for the continuous roof vent, 0.318 for the rolling-up roof vent for the rates due to wind forces, and Cd was obtained with the consultable value of 0.667 for the continuous roof vent, 0.863 for the rolling-up roof vent for the rates due to buoyancy effect in related situations.
在实验条件下,以风力为主导通风时Cd 和Cw的相关参量C的参考值对天窗开启式系统为0.178,对卷膜通风式系统为0.318;而在以温度为主导通风时Cd的参考值对天窗开启式系统为0.667,对卷膜通风式系统为0.863。
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If the hospitalization is diagnosed to be necessary of the insured due toany accidental injury, or for any disease after the day of insurance policy become effective (Ambulatory Surgery and observation room treatment due to no bed available shall be treated as hospitalization medical treatment), Party B shall be liable for the actual and reasonable expenses for medical treatment including nursing fee (limited to RMB100 Yuan per day for accumulative 30 days), ambulance fee, medical record fee, heating fee, air conditioner fee, bed fee (limited to RMB300 Yuan per day), expenses for docimasia, special examination and treatment, operation, medicine, treatment, laboratory test, radiation and etc., and shall pay 100% of the costs of hospitalization medical treatment.
被保险人因意外伤害事故或于保单生效日后因疾病,经医院诊断必须住院治疗(门诊手术及医院无床位原因的观察室治疗视同住院医疗),乙方就其实际支出的护工费(限额100元/天,累计30天)、救护车费、建病历费、取暖费、空调费、床位费(限额300元/天)、检查检验费、特殊检查治疗费、手术费、药费、治疗费、化验费、放射费等合理医疗费用,按100%给付&住院医疗保险金&。
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If the hospitalization is diagnosed to be necessary of the insured due to any accidental injury, or for any disease after the day of insurance policy become effective ( Ambulatory Surgery and observation room treatment due to no bed available shall be treated as hospitalization medical treatment), Party B shall be liable for the actual and reasonable expenses for medical treatment including nursing fee (limited to RMB100 Yuan per day for accumulative 30 days), ambulance fee, medical record fee, heating fee, air conditioner fee, bed fee (limited to RMB300 Yuan per day), expenses for docimasia, special examination and treatment, operation, medicine, treatment, laboratory test, radiation and etc., and shall pay 100% of the costs of hospitalization medical treatment.
被保险人因意外伤害事故或于保单生效日后因疾病,经医院诊断必须住院治疗(门诊手术及医院无床位原因的观察室治疗视同住院医疗),乙方就其实际支出的护工费(限额100元/天,累计30天)、救护车费、建病历费、取暖费、空调费、床位费(限额300元/天)、检查检验费、特殊检查治疗费、手术费、药费、治疗费、化验费、放射费等合理医疗费用,按100%给付&住院医疗保险金&。
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Leifeng Pagoda was first built in Northern Song Dynasty 977 AD, two years of peace and rejuvenating the country, originally for the King of Wu and Yue Feng Qian-shu Tibetan Buddhism as a relic to pray for peace and prosperity Luo Ji-fat built, the original name of Princess tower, tower of brick-wood structure leifeng well-known high tower, and Chinese folk legend of White Snake widespread myth is closely related to the story in the embodiment of white snake Bai Suzhen have been a result of the pursuit of true feelings and sea monk imprisoned in Leifeng Pagoda, the Leifeng Pagoda and therefore the statement of history far and wide Leifeng Pagoda on the fire hit twice, the first declared in the Northern Song Dynasty and years, because of Fang La uprising, a torch outside the wooden structure burned to the tower to the Southern Song Dynasty years, have been rebuilt Leifeng Pagoda, West Lake, one of Dusk is the leifeng circulated Leifeng Pagoda at that time subjected to fire the second Jiajing in the Ming Dynasty, when the pirates violation of Hangzhou, Leifeng Pagoda burnt again, remaining tower stands on the shore of West Lake, this case continued until the end of the Qing, Leifeng Pagoda finally collapsed due to overwhelming cause of the collapse on the Leifeng Pagoda in history is also very controversial, in general there are two versions of the previous two years in the clean-up sites Leifeng Pagoda time, found that a considerable portion of the tower of brick side of a small hole in the cave there are Buddhist in the past, people have incorrectly relay erroneous messages will pass into a gold brick by brick, the tower blocks have take-home, resulting in the collapse of the tower argument argument, one of the two, due south is the land of plenty since ancient times, but Hangzhou is the House of silk and tea, the history of Hangzhou on the rich silk, and every year when the silkworms cocoon silk, a variety of reasons, tend to have a large number of cocoon death, Over the past superstition, misconception that cocoon cursed, while the Leifeng Pagoda is a town of white snake demon, thinking that would be the Pagoda bricks at home, they can withstand the erosion of Yao Xie, you have to take a sericulture, his family wealth take a course of time, in particular, Taki shaft damage due to the common people, coupled with those in power are indifferent Leifeng Pagoda finally at 13:40 on September 25, 1924 came crashing down
雷峰塔初建于北宋太平兴国二年公元977年,原本为吴越国王钱淑为奉藏佛螺髻发舍利子以祈祷国泰民安所建,原名叫皇妃塔,塔为砖木结构雷峰塔的知名度之高,与中国民间广泛流传的神话传说白蛇传密切相关,故事中白蛇的化身白素贞因追求人间真情而被法海和尚囚禁于雷峰塔下,雷峰塔因而声明远播历史上的雷峰塔曾两次遭遇大火,第一次是在北宋宣和年间,因方腊起义,一把火把外面的木结构塔身加以焚毁到了南宋年间,曾重修雷峰塔,西湖十景之一的雷峰夕照就是在那个时候流传的雷峰塔第二次遭受火烧是在明朝的嘉靖年间,当时倭寇侵犯杭州,雷峰塔再次把火焚,仅剩塔身屹立于西湖之滨这种情形一直持续到清末民初,雷峰塔终因不堪重负而倒塌了关于雷峰塔倒塌的原因,历史上也很有争论,一般来讲有两种说法,前两年在清理雷峰塔遗址的时候,发现有相当一部分的塔砖一侧有一个小洞,在洞里有佛经而在过去,老百姓们以讹传讹将经砖传成金砖,纷纷将塔砖拿回家,从而导致塔的倒塌此说法之一说法之二,由于江南自古就是鱼米之乡,而杭州又是丝茶之府,历史上的杭州就盛产丝绸,而每年蚕宝宝吐丝结茧之时由于多种原因,往往有大量的蚕茧死亡,过去的人迷信,误以为蚕茧中了邪,而雷峰塔是镇妖的白蛇,以为将雷峰塔的砖放在家里,就可以抵挡妖邪的侵蚀,你家养蚕拿一块,他家求财拿一块,久而久之,塔身特别是塔基由于老百姓的破坏,加上当权者的漠不关心,雷峰塔终于在1924年9月25日下午1点40分轰然倒塌
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If the total accumulated time of all permissible delays and non-permissible delays aggregate to days or more, excluding delays due to arbitration as provided for in Article Ⅷhereof or due to default in performance by the Buyer, or due to delays in delivery of the Buyer's supplied items, and excluding delays duet to causes which, under Article V,Ⅵ,Ⅺ, and Ⅻ hereof, permit extension or postponement of the time for delivery of the Vessel, then in such event, the Buyer may in accordance with the provisions set out herein cancel this Contract by serving upon the Seller telexed notice of cancellation which shall be confirmed in writing and provisions of Article Ⅹ of this Contract shall apply.
如果所有允许推迟和非允许推迟的累计时间达到或超过天,但不包括第十三条所述的由于仲裁或买方违约或买方供应品延付引起的推迟,也不包括第五、六、十一和十二条中允许的延长或推迟交船的日期,在这种情况下,买方可根据本条款并按照本合同第十条的规定,以电传方式通知卖方取消本合同,该取消通知需经书面确认。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。