This paper discusses the breakeven point engineering volume,break even point unit price,profit and operating safety ratio in the contract of drilling engineering.
探讨了钻井工程承包中盈亏平衡点工程量、平衡点单价、利润及经营安全率等问题。
Maximum principal stress of tunnel surrounding rock and safety ratio of roof was studied to approve the feasibilities of tunnel arrangement,showing the best way about tunnel arrangement in schistosity rock.
结合某矿山工程实际情况,利用三维有限元数值模拟软件3D-σ对片理状岩体下中段主运输巷道的布置方式进行了数值模拟,通过对不同布置方式下的巷道岩体最大主应力和顶板安全率进行分析,论证了巷道布置的合理性,得到了片理状岩体巷道的最佳布置方式。
Using the method of expert-estimate to ascertain typical targets\' destruction-resist index,combining air attack weapon\'s standardization,calculating the total area and destroyed area of the targets,safety ratio of the preserved targets can be ascertained.
运用专家经验评估法确定典型保卫目标的抗毁性指数,结合空袭兵器标准化,通过计算确定防空作战中被毁目标的面积与战役总保卫目标面积,由此确定保卫目标的安全率。
DEA of safety efficiency of coal groups nowadays;
现阶段煤炭企业集团公司安全效率的DEA分析
Study on united under-frequency load shedding scheme of China Southern Power Grid based on frequency security quantitative analysis;
基于频率安全定量分析的南方电网联合低频减载方案
Since the traditional deterministic analysis methods can not properly consider the increasing uncertainties,it is very important to find appropriate probabilistic security assessment methods in power system study.
电力系统在运行过程中存在大量不确定性,对系统稳定运行会产生不利影响,因此可以考虑不确定因素的概率安全分析方法较传统的确定型安全分析方法更有意义。
The safe probability of ship navigation in random beam wave is studied by the probability density function.
应用概率密度函数研究随机横浪中船舶航行的安全概率。
The analytical model of safety cost rate for the construction project;
建设项目安全成本率分析模型
Research on Safety Ratio Model of Target Group in Air Defense Combat
要地防空作战中目标安全率模型研究
The Study of Contribute Rate of Safety Investments to Economic Growth and Safety Investments Decision-Making;
安全经济贡献率与安全投资决策研究
public safety radio frequency
公共安全无线电频率
Security Region Based Probabilistic Security and Risk Assessment for Power Transmission System;
基于安全域的输电系统概率安全与风险评估
Power System Probability Insecurity Index in Complex Power Injection Space;
复功率注入空间的电力系统概率不安全指标
Using integrated method of "Security Interest and Market Extraction" to determine the capitalization rate;
论“安全利率——市场抽取”综合法确定资本化率
Safety requirements of small power motors
GB12350-1990小功率电动机的安全要求
Safety analysis was based on the incidence of aderse eents.
安全性分析基于不良反应的发生率。
Live births rates kept increasing throughout 2006.
2006年婴儿安全出生率持续上升。
Study on Traffic Safety, Efficiency and Intervention in Weaving Area of Interchange;
立交交织区交通安全、效率与干预研究
On the Guarantee of the Safety and Efficiency of China s Social Security Fund;
关于社保基金安全和效率的保障问题
Analysis of QKD communication efficiency and security;
量子通信QKD的效率及安全性分析
Safe Design in Applications of L4970A Powerful Switching Regulator;
L4970A大功率开关稳压器应用的安全设计
Research on Efficiency and Security of E-Commerce Based on SET Protocol
电子商务SET协议效率与安全性的研究
Study on the safe probability of ship navigation in random beam wave
随机横浪中船舶航行的安全概率研究
Analysis of Economic Contribution Rate of Airline's Safety Investments
民航企业安全投入的经济贡献率研究
Tradeoff between Financial Safety and Efficiency of Credit Derivative
信用衍生产品与金融安全和金融效率
Transient risk assessment based on probabilistic insecurity index
基于概率不安全指标的暂态风险评估