质元素
- 与 质元素 相关的网络例句 [注:此内容来源于网络,仅供参考]
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A Labrary consists of the system of multi-elements,in which readers are inseparable factors,who play a restricted role in the system ,such as:the accumulativeness,the moveableness and the adaptableness.
图书馆是多种元素组成的系统,读者是该系统不可分割的要素;读者对该系统的"系统质"特征即积累性、流动性和适应性有重要制约作用;读者的主要功能是信息资源的接受、信息资源的反馈、信息资源的求新与开拓;读者的期待值应作为图书馆系统的重要调控依
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The elemental weight ratios (Na, K, Mg, Ca, Fe, Al, Ti, Mn, Ni)/Si of Ningqiang matrix are within the range of the corresponding ratios of CV chondrite matrix, Ca/Si and Al/Si ratios are high relative to those in the other CV chondrite matrix.
宁强基质的元素重量比值(Na、K、Mg、Ca、Fe、Al、Ti、Mn、Ni)/Si处于CV球粒陨石相应比值的变化范围之内,而Ca/Si、Al/Si值相对于其它CV陨石基质的同样比值较高。
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Studies of petrology and elemental geochemistry indicate that the Xiangshan uranium ore-field dacite porphyry belongs to intra-plate shoshonitic rock type and is a kind of shoshonitic dacite porphyry.
岩石学、元素地球化学研究表明,相山铀矿田的英安斑岩属于板内型钾玄质岩类,为钾玄质英安斑岩。
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The intermediate-basic volcanic rocks with SiO2 content less than 57.48 wt% are high in Al2O3(20.22-16.34 wt%) and K2O, enriched in large ion lithophile elements, show obvious Nb, Ta negative anomaly, these are same to the basalts which formed in island arc. The andesite, dacite and rhyolite rocks with SiO2 content between 62.11-75.19 wt%, are similar with the I-type granitic rocks formed in island arc in their geochemistry. It is suggested that the Jueluotage area of East Tianshan was in island arc setting during Late Carboniferous, when the subduction of the ancient Asian Ocean was in progress.
其中w(SiO2)小于57.48%的中基性火山岩具有高w(Al2O3)(16.34%~20.22%),较富钾,富集大离子亲石元素,具明显的Nb、Ta负异常;w(SiO2)介于62.11%~75.19%之间的安山岩、英安岩和流纹岩岩石化学特征与准铝质的Ⅰ型花岗质岩石相似,其地球化学特征也反映出岛弧花岗岩的特点,表明东天山觉罗塔格地区路白山一带在晚石炭世仍处于古亚洲洋向南俯冲的岛弧环境。
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Keeping[element]/[Mg]concentration ratio lower than 0.05 can minimize isobaric interference and matrix effects.
控制[元素]/[Mg]的浓度比在0.05范围内,可以忽略同质异位素的干扰和基质效应。
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The penetrability of liposome together with natural silk protein, silicon, vitamin E and Pro-B5 comprises of a high-concentration lipoprotein treatment system, which increase the protein cells and keratose of hair, completely lock the moisture and revive the damaged hair, shine as diamond.
脂质体的渗透力结合真丝蛋白、矽元素、维生素 E 及 Pro-B5,构成一组高浓度脂质蛋白修护系统,增加发细胞的蛋白质形成和角质物质,将水分完全锁住不流失,令受损发丝重获新生,如钻石般闪亮
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Of which,wet basis ash content is defined by gamma-ray log,and the precondition is the ash mainly argillaceous and contains no radioelement;carbon is defined by density log and artificial gamma log,and moisture calibration for density log ;saturated porosity is defined by density log after ash calibration;gas content is defined by acoustic log and density log compou.
其中以自然伽马测井确定湿灰分,该方法的前提条件是湿分主要是泥质且泥质不具放射性元素;以密度测井与人工伽马测井确定含碳量,并对密度测井作湿分校正;以灰分校正后的密度测井确定饱和水孔隙度;含气量的估算以声波测井和密度测井组成的复合参数ΔT/dDEN来确定,或以视电阻率曲线确定含气量。
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Geochemical study indicates that constant elements, microelements and trace elements in manganese ores and protore wholly take on thermal sedimentary characteristics, the siliceous limestone, silica-bearing limestone and bioclastic limestone is predominant protore beds of manganese-capped ores.
通过对锰矿石和矿胚层岩石中常量元素、微量元素及稀土元素等地球化学的研究,均具有热水沉积的特征,硅质灰岩、含硅质灰岩和生物碎屑灰岩是锰帽型矿石最主要的矿胚层。
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The analysis of lamprophyrespetrology chemistry reveals that it is a series of high potassium- potassium dike rock,it is abandunt in alkali(K2O,Na2O)and has a large reducing capacity.The diagrams of the major-element variation shows that the geochemical compositions-variations of the major oxides have vague general rules of homologous magmatic fractional-crystallization.the pearce diagram of trace elements shows it intensively enriched in LILE,intensively depleted in coherence elements(such as CrNi.et al).
煌斑岩的岩石化学分析表明,乳山地区与金矿成矿相伴生的煌斑岩为高钾质-钾质的碱性脉岩系,富碱(K_2O、Na_2O),具较强的还原能力(FeO含量均远高于Fe_2O_3含量),在哈克图解上,主要氧化物的变异规律表现出岩浆分离结晶演化的特点;微量元素的Pearce图呈现强烈的富集LILE,强烈亏损过渡族元素,稀土元素呈向右倾斜的轻稀土富集配分模式,在有关源区性质判别的图解(Cr-Ce/Sr图解和Ce/Yb-Ta/Yb比值图解)上均显示富集地幔源区的性质。
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This article has studied HG70 steel and HS-70 welding wires weldings,the welded joint,welding quality,and the welding operational performance,in restricts under the welding condition,Uses HS-70 welding wires,Experiments the steel plate the weld joint stretch,degree of hardness and the resilience test result indicated that,HG70 steel and HS-70 welding wires weld joints have the low crack sensitivity,The welding quality is good,Its weld joint has the fine mechanics performance,thus explained they had the fine welding match.
0前言非调质钢具有优良的使用性能和较低的生产成本,受到普遍重视。HG70钢是武钢开发的工程结构用钢,具有强度高、低温韧性好的特点。传统高强度钢一般碳当量较高,焊接性能较差。通过加入微量合金元素、采取新的控轧和调质工艺,使得HG70钢在提高强度的同时,亦保持了较高的韧性和较低的碳当量,因而从理论上讲HG70应具有较好的焊接性能,但HG70钢与HS-70焊丝的匹配情况,还有待于分析验证。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力