效率测量

The method described in this article can be used in the evaluation of medical rigid endoscope luminous energy transfer efficiency and can be applied to practical measurement.

此方法可用于医用硬性内窥镜光能传递效率的评价，便于实际测量应用。

The quantum efficiencies of the photomultiplier at the above wavelengths were measured respectively.

定标了光电倍增管的量子效率，介绍了实验原理和定标装置，系统分析了测量过程中引入的不确定度。

In petrochemical process, there are many important indicator variables that cannot be measured on-line. Such as purity, dry point of distillation product and distillation tray efficiency, etc.

在石油化工生产中，存在很多无法在线测量的重要指标变量，例如炼油企业精馏产品的纯度、干点以及精馏塔塔板效率等。

At present, as the production level is advanced with the technology of astronavigation and continuous development of aviation, higher accuracy and efficiency in measurement are demanded to meet them. Therefore, studies on the stiffness measuring of spring tubes, typical plastic parts, is of great importance in enhancing strength of national defense.

随着制造技术水平的提高以及航空航天技术的不断发展，对精密弹性元件的加工精度和加工效率提出了更高的要求，所以研究以弹簧管为代表的该类弹性元件的刚度精密测量技术对增强国防实力有着重要意义。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。