查询词典 low pressure

And it has already been developed from a simple and low fluid volume, low displacement fracturing well stimulation method into a mature technology.

压裂技术也从单井压裂发展到现在综合考虑水力压裂、油藏工程、采油工程及经济评价等的整体压裂技术。

The results show that the removal rates of COD and BOD 5 can reach 90% and over 90%. The process has the advantages of stable treatment effect, less land occupancy area, low investment and low energy consumption. It can be used to treat the wastewater with larger volume, and deep color, high organic content and even toxicity.

运行实践证明，该工艺对 COD 去除率可达90%， BOD5去除率可达90%以上，且具有处理效果稳定、占地面积小、投资少、能耗低的优点，可用于水量大、色度深、有机物含量高甚至有一定毒性的废水处理。

2KV, and the critical disruptive discharge voltage of low voltage transformer, filter and relay is between 3. 1 to 10.2kV. The lightning current withstand characteristics of electrical lines in low voltage system is also tested.

研究了全封闭和带丝网玻璃窗后的金属板屏蔽小室的稳态屏蔽效能和暂态屏蔽效能，比较了合金丝网玻璃窗对金属板屏蔽室屏蔽效能的影响。

In the present work, based on the mechanism of low - temperature corrosion, an opinion was presented by theoretical analysis and computation, that is the vacuum boiler can not avoid being corroded completely under low temperature, but the corrosion is very weak no matter if the exhaust gas temperature is higher than the flue gas dew point; it was obtained the relationship between the corrosion velocity of metal wall and wall temperature along gas pass of vacuum boiler, and the one between the corrosion velocity of metal wall and wall temperature under the condition that the flue gas temperature is lower than the acid dew point.

文章从锅炉发生低温腐蚀的机理人手，通过理论分析计算并通过实践检验，提出了真空相变锅炉虽然不能完全避免低温腐蚀问题，但不论排烟温度是否高于烟气露点，低温腐蚀的程度都很弱的观点；给出了真空相变锅炉沿烟气流程金属壁面的腐蚀速度与壁面温度的关系曲线，和烟气温度低于酸露点时金属壁面的腐蚀速度与壁面温度的关系曲线；同时，文章推荐真空相变锅炉的设计排烟温度取130℃左右的低排烟温度。

In the present work, based on the mechanism of low-temperature corrosion, an opinion was presented by theoretical analysis and computation, that is the vacuum boiler can not avoid being corroded completely under low temperature, but the corrosion is very weak no matter if the exhaust gas temperature is higher than the flue gas dew point; it was obtained the relationship between the corrosion velocity of metal wall and wall temperature along gas pass of vacuum boiler, and the one between the corrosion velocity of metal wall and wall temperature under the condition that the flue gas temperature is lower than the acid dew point.

本文从锅炉发生低温腐蚀的机理入手，通过理论分析计算并通过实践检验，提出了真空相变锅炉虽然不能完全避免低温腐蚀问题，但不论排烟温度是否高于烟气露点，低温腐蚀的程度都很弱的观点；给出了真空相变锅炉沿烟气流程金属壁面的腐蚀速度与壁面温度的关系曲线，和烟气温度低于酸露点时金属壁面的腐蚀速度与壁面温度的关系曲线；笔者专门从事真空相变锅炉的设计研究已十多年，根据上述观点设计的数百台产品已经过多年实际运行，未发现明显低温腐蚀。

The δ〓O for both of them are changed due to water/rock interaction at water/rock weight ratios of larger than 0.1, and the calculation indicates that, in this case, the influence of water/rock interaction on the δD value of the fluid is minor. In the upper part of the geothermal system, the upward ore forming fluid mixes with low temperature groundwater with very low salinity and δ〓O, which may cause the precipitation of metals.

根据氢、氧同位素研究结果，嵩溪银锑矿床的上升成矿流体是由岩浆热液与循环地下水热液混合而成，这种混合成因含矿热液上升到地热系统上部与低矿化度、低δ〓O的低温地下水发生了不均匀混合，这种混合作用导致金属矿物沉淀，但成矿物质是由上升成矿流体带来的。

On the basis of the characteristics of line boundary, this paper analyzes the different features of internal and external faults. The difference is that the ratio of high frequency to low frequency components in case of one external fault is less than that in case of the same internal fault, in which high frequency is in the band of line trap and low frequency is within 1~10kHz.

在线路边界频率特性的分析基础上，深入地分析了区内外故障时的特征差异：就某一类故障而言，区外故障时反行波中高频分量与(1~10kHz内的)低频分量的比值显著小于区内故障时的比值。

Trail has been in the car division between the large half-day I walk in the six-bridge for a short complement and finishing, are somewhat ill-prepared, in the four bridge after almost no chance to get on the way to the mountain spring water, In the following trip can only be used to save the only two bottles of mineral water, and good in more than 4,000 meters above sea level the temperature is very low, low water consumption.

已在车师古道间行走了大半日的我，在六道桥进行了短暂的补充和修整，感到有些准备不足的是，在四道桥过后，一路之上几乎没有机会取到山间的泉水，只能在以下的行程中节省地使用仅有的两瓶矿泉水，好在4000多米的海拔气温很低，水分消耗不多。

As an intern, I was low man on the totem pole. Given I worked in Ops Control, I was low man on the lowest totem.

作为一个实习生，我在部门的地位最低；而作为操作控制部门的一员，我是公司最底层部门的最底层员工。

The problems of low space resolution and low time resolution in the current detector system of Positron Emission Tomography were studied.

研究了正电子发射层析照相探测器系统所存在的空间分辨率和时间分辨率低的问题。

The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.

生产提出过百老汇的新的纽约市，在那里她赢得了约瑟夫calloway奖，她的表现，并于异型在美国的战区杂志之一， 10战区的青年艺术家观赏。

It's a risk tradeoff, and I believe that adding test support code usually wins.

这是一个风险的权衡，我相信添加测试代码通常会占上风。