coffer是什么意思

用法例句

A new inflatable device based on the automatic control principle of pressure was developed to overcome shortcomings in traditional sealing technologies and to meet the needs of sealing fire areas safely.

66 m2的非规则粗糙壁面巷道,气囊自动充气封闭的时间仅为12~13 min,比常规密闭的施工时间短;采用褶皱和裙边结构,气囊漏风率仅为5%左右,具有良好的封闭效果。

Simply Analysing the Requirement of the Air-cooling Airtight System for the Function of Complementing Water;

浅议空冷式密闭系统对补水功能的要求

According to the actual situation,using the following methods such as airtight dust,automatical adding water,machinery dust removal,high-pressure static electricity,wet cleaning,etc.

文章介绍了包钢选矿厂在矿石的翻车、运输、破碎、筛分过程中产生的粉尘对人、环境、设备的危害进行了分析,并根据包钢选矿厂产尘的实际情况,治理粉尘污染所采用的密闭除尘、自动加水除尘、机械抽风除尘、高压静电除尘、湿法清扫等方法收到的显著效果。

Combination of well testing and logging tech makes true of closed injection profile well logging which changes former wire line logging that needs giving out over-fall first and then conducting operation to avoid surface pollution that acquires true data on normal water in- jection situation and saves manpower and material resources.

试井技术与测井技术相结合可实现高压注水井密闭吸水剖面测井。

Such as compound initiation system, feeding water successively in course of reaction, reducing step- down time in later time of reaction, new type anti- sticking agent, adding material in closed condition, crude material monitoring and DCS computer automatic control technology.

通过采用复合引发体系、反应中间连续注水、反应后期缩短降压时间、新型防黏釜剂、密闭入料、粗料监测及DCS计算机自控技术等使聚合釜的生产能力由0。

Selecting the sealing position for stope face after mining;

回采工作面采后密闭位置的选择

The Research on New-style Seal-filling Hydrogel for Mine;

矿井用新型水凝胶密闭填充材料的研究

Making use of the advantage time in low temperature in winter and spring,using method of mechanical yen- tilation for bulk wheat in the large storehouse to descend grain temperature,thereafter,sealing the grain bulks, heat insulating to prevent pest.

利用冬春季节气温较低的有利时机,对高大平房仓散装小麦进行机械通风,将粮食降到较低温度,然后对粮堆进行密闭,隔热防虫。

Influencing factors and correction method for error of fluid saturation calculation during sealed coring;

密闭取心流体饱和度误差的影响因素及修正方法

Based on the sealed coring, and combined with logging interpretation and numerical simulation, the water flooded characteristics of oil layer, and remaining oil distribution can be studied, the inherent relation of water flooded characteristic and interlayer, internal and plane heterogeneous characteristic, water flooded characteristic and fluid can be revealed.

通过密闭取心方式,结合测井解释和数值模拟,研究油层水淹特征及剩余油分布,揭示水淹特征与油层层间、层内和平面非均质以及流体的内在联系,是不同阶段开发调整及提高采出程度的基础或关键技术。

Using the principle of data statistics and regressive formula as well as the calculating method by rock pyrolysis, the cores by sealed coring and sidewall coring in two wells are compared in Xingshugang Oilfield.

应用数理统计、回归方程原理和岩石热解计算饱和度方法,通过对杏树岗油田2口密闭取心井的岩心与井壁取心分析资料进行对比,介绍了应用密闭取心分析资料对井壁取心分析资料进行2步校正并求取剩余油饱和度的方法,求得了杏树岗油田有效层和表外层的剩余油饱和度计算公式。