查询词典 decrease volume

CO2 and H2S exist in the hydrocarbon zone and foramtion water,as the accompany gases of petroleum and nature gaso or components of formation water,which will cause corrostion to the cement sheath under certain conditions of humidity and pressure.It will decrease the cement sheath's alkalinity,which results in the decrease of cement sheath's strength,permeability increase,and places a premium on fluid channeling and borehole wall sloughs accident in plastic formation,shortening the oil- gas well's production lifetime and giving rise to tremendous ecomonic losses.

CO2和H2S作为石油和天然气的伴生气或地层水的组分存在于油气层或地层水中，在一定的湿度及压力条件下会对固井水泥环产生腐蚀作用，从而降低水泥环的碱性，使水泥环强度下降，渗透率增大，并诱发流体窜流、塑性地层井壁跨塌等事故，从而缩短油气井的生产寿命，造成巨大的经济损失。

B Where the Load up/down program is not provided, the Engineer shall increase and decrease the speed in accordance with the speed increase and decrease procedure of each ship, and shall pay attention to the Load Indicator, the RPM of the Main Engine or RPM of the propeller shaft, CPP pitch, the speed

如已提供增减负荷程序，轮机员应根据速度增加和减少程序进行加减速，特别注意，负荷显示、主机转速、螺旋桨轴转速、可变螺距、船速等，避免突然加减负荷。

Because the particularity of ABS, the brake pressure could decrease in very fast ratio. So the retuning pump must work at the same time during pressure decrease. This is why ABS valve is different from other normal valves.

由于ABS的特殊性，在减压过程中要求制动系统压力下降速率很快，因此减压时必须开启回油泵，这也是ABS电磁阀区别于其它电磁阀的主要原因和特点。

The water flux increased and retention decreased with the increase of the additive content, the decrease of pre-evaporate time, the decrease of evaporate pre-temperature in blend system. One can control the performance and structure of the membrane by changing composition of coagulation bath and temperature.

随预蒸发时间的增加，膜的水通量降低，截留率上升；随预蒸发温度的升高，水通量下降，截留率上升；通过改变凝固浴组成和温度，可以调节膜的结构性能。

The results show that increase of the pre-expansion pressure, decrease of the pre-expansion temperature and the nozzle diameter result in increase of supersaturation and nucleation of the supercritical solution and decrease of the particle size. The supersaturation in the course of RESS can reach 10〓 and nucleation rate is about 10〓 particles m〓s〓.

计算结果表明，预膨胀压力增加，超临界溶液在快速膨胀过程中过饱和度提高；预膨胀温度提高，超临界溶液在膨胀过程中的过饱和度和成核速率降低；喷嘴的直径减小，流体密度降在膨胀过程中增大，从而导致溶液的过饱和度和成核速率提高。

The second one: we studied the effect of temperature on performance of LDs. It was found that threshold current increase exponentially, outpower and slope efficiency decrease parabola and exponentially respectively. Coefficient of temperature shift is 0.24/K, whereas characteristic temperature also decrease with rise of temperature.

研究了温度对激光器各参数的影响，随着温度的增加，阈值电流呈指数增加，输出功率和斜率效率分别呈抛物线和指数关系递减，同时特征温度也减少，波长随温度的漂移系数为0.24nm/°C，并且总结了一些温度和结构设计方面的关系。3。

The effect of low temperature treatment on DNA methylation level decrease revealed some variety differences. The DNA methylation level in stem apices of the spring radish cultivar'Duanye 13'was somewhat easy to be decreased by low temperature treatment, but that of the winter radish cultivar'Yidianhong'did not decrease when the germinated seeds were treated at 10℃ for 10 days.

萌动种子低温处理降低DNA甲基化水平的效果在品种间存在一定差异，春性品种'短叶13'其DNA甲基化水平比较容易被降低，而冬性品种'一点红'的萌动种子在10℃下处理10d尚不能降低其DNA甲基化水平。

Analysis show a sharp decrease in annual wind speed in most part of North China in recent ten years which is more obvious than that of temperature and precipitation, and this may lead to the decrease in sand dust storm frequency.

分析结果表明了近10年来北方大部分地区的年均风速于快速下降过程，其变化幅度大于气温和降水等的变化，在这种趋势下可能会导致沙尘暴发生频率减少。

Result :(1)the percentage of NTG tolerance in Group Ⅱ and Group Ⅲ were lower than that of Group Ⅰ( P ＜0.05);(2)Captopril and non-sulfhydryl ACEI could inhibit the re-elevation of SBP and the decrease of platelet cGMP at the later stage during the NTG infusion;(3)Platelet cGMP could be an indicator of nitrate tolerance;(4)ACEI could decrease the production of vasoconstrictor substances such as Ang Ⅱ,ET and increase the production of vasorelaxant substances such as BK.

结果：①Ⅱ组和Ⅲ组耐药比例均较Ⅰ组低( P ＜0.05)；②加用Captopril和非巯基ACEI能使NTG滴注过程后期的SBP回升及血小板cGMP下降得到抑制；③血小板cGMP能反映NTG耐药；④ACEI能在NTG滴注过程中使缩血管物质减少、舒血管物质增多。

The chromatic aberration was decreased for filler adding, and the decrease was the biggest by CaCO3, the smallest decrease is TiO2. The chromatic aberration decreased gradually with CaCO3 dosage, however, the chromatic aberration changed little when CaCO3 dosage is greater than 20%; also the two-sidedness of paper was improved by filling.

填料的使用明显降低了色差值，其中降低最显著的为碳酸钙，最少的二氧化钛，碳酸钙用量的增大导致色差值逐渐降低，当碳酸钙用量大于20%后，色差值变化很小，但加填改善了色差值两面差的问题。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。