用颗粒动态分析仪(PDA)测量了悬浮床内气固两相流动的结构，确定了不同表观气速和不同进气结构条件下的两相流场的特点。
The structures of the gas solid two phase flow in the suspension bed were measured by a particle dynamic analyzer (PDA) at different apparent velocities for each of the nozzle structures.
测量，分析和维护在江河湖泊，雨水和污水中的水的质量和流动，并调查和绘制海洋，海和河流的地图。
Measures, analyses and maintains the flow and quality of water in rivers, lakes, stormwater and sewage, and surveys and maps oceans, seas and rivers.
在对净额支付系统清算规则进行上述分析的基础上，探讨了净额支付系统中流动性风险和信用风险的测量与评估方法。
This paper, on the basis of studying the net settlement system, lists the measure and evaluation models of liquidity risk and credit risk in the net settlement system.
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