useful work是什么意思

网络释义

用法例句

This article was aimed at ships with different type,different tail form and different fairway using common estimation method as basic calculation module of ship effective power.

针对船舶不同类型、不同航道、不同尾型分别采用不同的近似估算方法作为船舶有效功率计算的基本模块,然后根据多年对船舶阻力研究的经验和大量船模试验与实船资料,对基本模块作相应的修正,得到普通船舶的有效功率计算方法,并用程序实现。

A new calculating formula of the effective power and effective delivery lift of the reciprocating pump of multiphase flow is set up by the cyclic indicating figure of the pump.

根据往复泵的理论循环指示图 ,分别建立了气体按等温过程和多变过程压缩和膨胀时 ,气液均相流往复泵有效功率与有效扬程的计算公式。

A new calculating formula of the effective power of the reciprocating pump of multiphase flow is set up by the cyclic indicating figure of the pump.

根据往复泵的循环指示图建立了计算多相流往复泵有效功率的新方法。

Research on theoretical effective power consumption of comminuting rhizomatic traditional Chinese medicine;

根茎类中药粉碎理论有效功耗的研究

effective output

有效输出量有效功率

Numerical calculation and model tests for drag and power prediction of a manned submersible

载人潜器阻力和有效功率的数值计算与试验

Analysis of Synthetic Error in Measurement of RMS and Active Power

有效值及有功功率测量的综合误差分析

maximum effective isotropically radiated power

最大有效各向同性辐射功率

Results the rate of success for the living fingerprint capture increased efficienfly.

结果有效提高活体指纹采集的成功率。

The power factor (pf) is the ratio of average power to apparent power.

功率因数是有功功率与视在功率之比。

It's powerful. It's luxurious. It's efficient.

大功率，超豪华，高效率

arbitray phase angle power relay

有功无功功率继电器

arbitrary phase-angle power relay

有功-无功功率继电器

Conclusion Modern technology improve the efficiency and success of the first aid of 120 emergency command center.

结论现代技术能有效提高120急救指挥中心的急救效率和成功率。

automatic distributor of active power

有功功率自动分配装置

Power Factor Power factor is the cosine of the angle between the actie power( kW) and apparent power( kA) in a circuit.

功率因数功率因数是电路中有功功率(W)视在功率(A)间夹角的余弦值。

Brand,Conversion Efficiency and Effective Production Efficiency;

品牌、转化效率与有效率的生产效率

In this way the team will be efficient, effective and, no doubt, successful.

如此一来，整个团队将会更有效率和绩效，而且无疑一定会成功。

the stock market plays its other functions effectively, that is, the market should be efficient;

股票市场其它功能的有效发挥，即股票市场的效率状况；

The development and application of point stake-out increases work efficiency and reduces product cost.

点位放样功能的开发应用,有效地提高了工作效率。 降低了生产成本。

field-effect HF power transistor

场效应高频功率晶体管

equivalent isotropic radiated power

等效无方向辐射功率