threshold quantity

用法例句

Analysis of difference in threshold quantity for identification of major hazard installations between domestic and aboard;

浅析国内外重大危险源辨识中危险物质临界量的差异

Under our country background, the standard of Identification of major hazard installations was revised in application scope, the classification of major hazard installations, the category of dangerous substance, threshold quantity of unit, and so on.

本文对国外发达国家重大危险源辨识标准现状进行了调研,结合我国实际情况,提出了《重大危险源辨识》适用范围、分类、危险物质种类及临界量等方面的修订建议,解决了以前重大危险源申报登记工作中存在的一些技术性问题,可作为我国中长期重大危险源监督工作的指导性文件和重大危险源监管体系建设的依据。

Based on the threshold quantity of Identification of major hazard installations in "Identification of major hazard in-stallations",it makes out the hazardous chemicals catalog and their threshold quantity suitable for China, and offers some suggestion of implementing process safety management in China.

从工艺安全管理(PSM)的角度,对美国、欧盟等的工艺安全管理系统适用范围的定义进行分析,结合目前国内《重大危险源辨识》中给出的部分危险化学品的临界量,以此为基础制定适合我国国情的危险化学品目录并确定各物质的临界量,提出在我国推行工艺安全管理系统的建议。

Study on effect of membrane fiber length on critical flux in a novel membrane bioreactor;

新型膜-生物反应器中膜丝长度对临界通量的影响

Study of critical flux in flat-sheet membrane bioreactors;

平板膜生物反应器临界通量测定方法研究

Factors affecting critical flux in submerged flat membrane bioreactor;

影响一体式平板膜生物反应器临界通量的因素

Through analyzing the effect of the vertical locations of horizontal wells on the critical output and gas breakthrough time of the gas cap reservoir, the curve showing the relationship between the vertical locations of horizontal wells and the critical output as well as the gas breakthrough time is obtained in t.

针对这一问题,从水平井垂向位置对气顶油藏临界产量和见气时间的影响入手,得出了临界产量和见气时间与水平井垂向位置的关系曲线;在综合考虑临界产量和见气时间的基础上,得到了水平井垂向位置与临界产量和见气时间乘积的关系曲线,由曲线趋势得到了气顶油藏水平井最优垂向位置的范围。

The bottom water coning model used by Boyun Guo considered the influence of perforation length on critical output, so it can be used to calculate the perforation length of bottom water reservoir.

由于BoyunGuo等人使用的底水锥进模型引入了射孔长度对临界产量的影响,所以可用于优化底水油藏的射孔段长度。

The paper has discussed the effect of vertical locations of horizontal wells on the critical output and producing pure oil time,analyzed the ratio .

水平井垂向位置与临界产量、产纯油时间、油水密度差和油气密度差比值,以及临界产量与产纯油时间的乘积等关系的研究结果表明,水平井垂向位置越靠近气顶或底水,临界产量越高,但产纯油时间越短;越靠近最佳位置(气水同时锥进到油井中),临界产量越低,产纯油时间越长。

Calculation method of critical production rate for fractured-vuggy reservoir with bottom water

塔河油田缝洞型底水油藏临界产量计算研究

In 1993, a formula for critical production rate of oil well in bottom water reservoir with partition board was proposed by Dr.

1993年李传亮提出的带隔板底水油藏油井临界产量的计算公式中不含油井打开程度的参数,即没有考虑油井打开厚度的影响。

On the basis of this theoretic model, the critical production rate, the shape of water coning and the optimum perforation intervals could .

在理论模型的基础上,建立了预测临界产量、水锥形态以及优化射孔长度的数学模型。

The critical flow rates of sand grains with different size migrated from the sand-carrying pipe with different angle of inclination were measured.

观察了颗粒在不同倾斜角度的井筒中的运移方式,测定了不同粒径的砂粒被携带出的临界流量,揭示了颗粒直径同流体流量关系变化规律。

There are two methods to demonstrate the critical flow rate of one-dimensional steady isentropic flow when Mach number is one at the throat of nozzle.

给出定常一维等熵流的临界流量(最大流量)发生在喉部马赫数(Ma)为1时的一种新的证明。

A METHOD TO DETERMINE SAND CRITICAL PRODUCTION IN FRACTURING GAS WELLS

压裂气井出砂临界产量确定方法研究

A prediction model on calculation of continuous liquid carrying critical production of directional gas wells

定向气井连续携液临界产量预测模型

Discussion on Decision-making Methods for Critical Turnout of Single Oil Well;

关于油井单井临界产量决策方法的探讨

Calculation method of critical production rate for fractured-vuggy reservoir with bottom water

塔河油田缝洞型底水油藏临界产量计算研究

Research and application of critical productivity in water-driving development horizontal well reservoirs

水驱油藏水平井临界产量的研究与应用

ABSTRACT: This paper provides formula of critical production computation of oil wells in reservoir with bottom water and confing bed, which is suitable for all wells in reservoirs with bottom water and confing bed.

本文给出了带隔板底水油藏油井的临界产量计算公式,它适用于所有带隔板底水油藏的油井。

A NEW METHOD AND THE APPLICATION OF PREDICTING CRITICAL LIQUID-CARRYING RATE IN GAS WELL

预测气井临界携液产量新方法及应用

Application of modified Hubbert Model to prediction the critical point of oil production in the world

修正Hubbert模型及世界石油产量临界点预测

Breakeven point: The level of product sales at which financial revenues equal total costs of production.

盈亏临界点:财务收入和生产总成本正好相等时的产品销售量。

Study on the optimal critical value of the Edinburgh Postnatal Depression Scale in the screening of antenatal depression

爱丁堡产后抑郁量表在孕晚期妇女产前抑郁筛查中的临界值研究

real gas critical flow coefficient

真实气体临界流量系数

The critical conversion efficiency is defined as the conversion efficiency of light energy when the hydrogen energy output is equal to the energy input from the outside system.

临界光能转换效率就是系统产出的氢能与外界输入系统的能量相等时的光能转换效率。

activation energy for fission

裂变临界能量裂变的激发能量

(Output) leap into the front ranks of the world

跃居世界前列(产量)

variable-rate reservoir limit test

变产量油藏边界试验

The greater the enrichment, the less the critical mass.

浓缩程度越大，临界质量越

On the Conformal Schouten Functional and Its Critical Metrics;

共形Schouten泛函及其临界度量的研究

Discussion on Key Points for Installation Quality Control of Supercritical Boiler

浅谈超临界锅炉安装质量的控制要点