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Many data and discussions about carbonate rock dissolution in CO2 solution have been published. In this paper, special simulation experiments were carried out in order to understand the dissolution behaviors of carbonate rocks in organic acid and H2S solution. The results show that, as the temperature rises from 20℃ to 200℃, the dissolution rate of carbonate rock in organic acid increases with temperature below 90℃ and decreases above 90℃.
CO2对碳酸盐岩储层的溶蚀作用已有不少学者进行了研究,本文则以一个全新的模拟实验方式对不同类型碳酸盐岩在有机酸和H2S水溶液中的相对溶蚀能力进行了研究,结果发现随温度从常温升高至200℃,有机酸对碳酸盐岩的溶蚀能力由弱变强再变弱,在90℃左右溶蚀能力最强。
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Based on the models presented above, this paper provides the new design of the E1 to VC-4 mapping Application Specific Integrated Circuit that named MXLO21E1-3. The innovations of the chip are listed below.(1) One chip can fulfill 21 E1 tributaries to demultiplex and multiplex from and to two VC-4 buses that transfer in different directions (2) Put forward the new design scheme which combined the ADM system with TM system (3) Adopted the advanced pointer processor which remarkably restrain the output wander (4) Timing recovery is realized in the chip, which reduce the peripheral circuits The characters listed above made the MXLO21E1-3 advanced in the scale, system performance, and application allover the world.
在所建立的SDH系统集成模块概念的基础上,本文提出了一个新的SDH映射芯片MXLO21E1-3的方案设计,该方案创新性的特点在于:(1)单片实现21个E1双总线映射,其功能相当于目前国际应用最多的同类芯片的5倍(2)实现分插复用器ADM和终端复用器TM合二为一的系统设计(3)采用先进的指针处理,显著减小漂移(4)片内E1定时提取,进一步减少外围电路上述特点使该芯片在功能规模上,系统性能和应用上都具有国际领先水平。
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Improving upon hull below and rigging above, he makes a proud merchantman, to be wafted by the winds from continent to continent.
通过改进船体水下部分,并在船体上安装上风帆,他就成了令人骄傲的商人,让风将他从一个大陆送往另一个大陆。
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Results The patients were predominently female teenagers with a history of gradual onset of bilateral hearing loss, pure tone audiometry revealed symmetric ascending audiograms with moderate hearing loss at frequencies below 1 kHz, but relatively normal hearing at 2 kHz and above. Speech reception thresholds were between 40 to 85 dB HL, discrimination score was from 29% to 68%. Stapedial reflex, auditory brainstem response and compound action potentials were absent or threshold elevated disproportionately to the pure tone threshold. All of the patients had normal cochlear microphonics and robust spontaneously and transiently evoked otoacoustic emissions, the TEOAE showed no contralateral suppression effects as seen in normal subjects.
结果 该病多在青春期后起病,女性较多发,表现为渐进性双耳对称性听力下降,纯音听力以低频损失为主,语言接受阈升高,分辨率下降,镫骨肌反射及ABR引不出或阈值明显升高与纯音听力不成比例,耳蜗微音器电位正常,听神经动作电位引不出,耳声发射波幅高、时程长且不为对侧声刺激所抑制。
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Reshores are then installed snug to the soffit to transfer construction loads from the floor above to the floors below or to the ground floor.
reshores然后安装勾勒的檐口转让施工荷载从楼以上的地板下面或地下。
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A replacement cost above the market price doesn't do the investor any good . When the bottom falls out of the real estate market , as it does from time to time , plenty of houses sell for below the building cost , forcing builders to take a loss , and crimping new development , until supply and demand come back into balance .
可房产重置价格高于市场价格,投资商就赚不到钱;而当重置价格跌至底部,以至与房地产市场极不相称,房产的卖价就会低于开发价,从而导致开发商亏损、新的开发项目停滞,直到供求关系达到平衡这种局面才会扭转。
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Aimed at the complex work state, we considered the metacentric stability and the dynamical stability in the situation of above and below the sea lever, studied the movement from the underwater to the surface, so as to prove that the collectivity escaping chamber will not jump out of the water.
针对集体逃生舱工作状态复杂的特点,考虑了在水下和水上两种情况下的静稳性以及水上情况下的动稳性,同时研究它从水下到水面的运动情况,以证明集体逃生舱不会从水面跳出和发生倾覆。
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The effective temperature range of the zinc dipping process is from 0 to 40℃ and more preferably 20 to 30℃, when the temperature is below 20℃, zinc dipping time is preferably more than 30 seconds, when the temperature is above 30℃, zinc dipping time is preferably less than 30 seconds.
该浸锌液的工作温度为0~40℃,较佳温度范围为20~30℃,当温度低于20℃时,浸锌时间应在30 s以上;当温度高于30℃时,浸锌时间应小于30 s。
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This can often result in the mass movement looking towards 'the leader', the 'caudillo', to introduce social and economic reforms from above rather than through the organization of a conscious movement from below.
由于缺少强有力的能与资产阶级观点对抗的社会主义可能性,使得工人阶级的政治觉悟和组织活动被彻底抛弃。
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The spectrum analysis shows that ① Infrasonic waves produced by meteor are mostly very short, lasting one to five minutes;②Periods of the infrasonic waves range mostly from 40 to 408 seconds, and a few waves range from 40 to 480 seconds;③ During 7:21 p.m. to 8:41 p.m. on Nov. 17, the infrasonic waves were much denser. After 8:41 p.m., the waves become more and more sparse, all waves conform to those observed with naked eyes;④ Amplitudes of infrasonic waves from meteor differ significantly from each other (weaker ones below 5 to 10 Pa, medium ones from 10 to 20 Pa, and stronger ones from 20 to 40 Pa). Two of the strongest ones reach 75 Pa and 50 Pa respectively around 7:28 p.m. and 8:07 p.m. on Nov. 17. An explanation of above results is given.
频谱分析结果表明:①各流星产生的次声波大都很短暂,持续时间为1~5min;②流星次声波的周期大都在40~408s;③在1998年11月17日19:21-20:41期间流星次声波仍很密集,20:41后才变得越来越稀疏,恰与肉眼观测结果相符;④流星次声波的振幅彼此相差很大,较弱的在5~10Pa,中等的在10~20Pa,较强的在20~40Pa,最强的两个波在11月17日19:28和20:07前后分别达到75Pa和50Pa。
- 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