A simple and approximate method is worked out on changing working states to the characteristic of steam falling away from some back stages of a turbine in the working state of the little volume flow.

本文针对汽轮机末几级在小容积流量工况下产生脱流的特点，结合工程实例推导出一种简单近似的变工况核算方法。

youdao

According to the principle of conservation, differential equation which can describe airflow temperature distribution in state of turbulent flow in mine working face is deduced.

从守恒原理出发，导出了描述矿井回采工作面风流紊流流动和温度分布的微分方程。

youdao

The affecting factors of the continuous-flow two-sludge system for simultaneous biological phosphorus and nitrogen removal were investigated in order to decide on the best working state of the system.

目的为了深入研究连续流双污泥反硝化同时除磷系统的主要影响因素，确定系统最佳运行条件。

youdao