Effects of reflow′s cycles on the properties of solder joints with Sn3.5Ag0.5Cu;
回流次数对Sn3.5Ag0.5Cu焊点特性的影响
Especially,its hardness and strong abrasiveness often leads to short drilling footage per round trip and thus low drilling efficiency.
因此,钻进效率低,回次进尺短,孔斜不易控制。
Application of fuzzy control technique to secondary return air systems in large spaces;
模糊控制技术在大空间二次回风空调系统中的应用
Further the influence in jet s ventilation of secondary return air on the zones comfort is studied.
通过实验研究了射流送风中二次回风相对一次回风对工作区间舒适性的影响。
Analysis on Project Between VRV Air-Conditioning System and Central Air-Conditioning System;
VRV空调系统与一次回风空调系统方案比较
Energy-saving Analysis and Heat Pipe Central Air-conditioning System with Primary Return Air
热管式一次回风集中空调系统及其节能分析
Common problems in design of primary return air conditioning systems
一次回风空调系统设计中几个常见问题分析
Online Automatic Fault Detetion and Diagnosis on Primary Return Air-Conditionging Systems Based on Expert Rules
基于专家规则的一次回风空调系统在线自动故障检测与诊断
How to Optimize the Design of One Time Return Air Conditioning System in Order to Well Diluting the Indoor Particulate Air Pollutants
稀释室内颗粒状污染物用一次回风空调系统的优化设计
Online Fault Detection and Diagnosis on Primary Return Air-Conditioning System Based on Expert Rules
基于专家规则的一次回风空调系统在线故障检测与诊断
Radar Data Analysis of a Supercell Storm
一次超级单体风暴的雷达回波特征分析
This was the opening attack of the season by one of the storms with which Shanghai was favoured each summer.
这是年年夏季要光顾上海好几次的风暴本年度内第一回的袭击！
The wind, having gone no-one-knows-where, suddenly re turns, returns as a beating drum: Boom-lum-lum, Boom-lum-lum!
不知到什么地方去过一次的风，忽然又回来了，这回是打着鼓似的：勃仑仑，勃仑仑！
but having tried twice i was forced in again by contrary winds
可是试了两次,都被逆风顶了回来。
Once or twice she looked over her shoulder at me.
有一两次她回头看看我。
The night watchman makes his rounds every hour.
守夜者每小时巡回一次。
final homeward passage
最后一次回国旅程的旅费；最后一次回程旅费
We came back all the way before the wind.
我们回来一路顺风。
Delighted you are all safely home, and I hope you had a smooth run.
你们都已经平安地回国了，我感到很高兴，并且希望你们度过的是一次风平浪静的航程。
An Analysts of the Grab of the Primary Air Fan from a 600 MW Boiler
某600MW锅炉一次风机抢风的分析
This material could be the best solution for tertiary air duct elbow lining occasions.
解决了大型回转窑三次风管弯头的材料问题。
After a brief rally share fall back to a new low.
股票经过一次短暂回升后回落到一个新的低点。