TORONTO - a United Express regional jet carrying 44 passengers from Chicago skidded off the runway while landing in Ottawa on Sunday afternoon, but no one was apparently injured, authorities said.
多伦多-当局说，星期天下午在渥太华一架从芝加哥起飞的、载有44名乘客的联合快递区域飞机在渥太华着陆时滑出跑道，但是没有人受伤。
It is shown after analysis that the efficiency of roto-jet pump is higher than theefficiency of multistage pump and express pump when it operates in the region of low dis-charge and high lift.
通过对提高某化工装置反应器进料泵扬程两种方法的分析对比、实验研究，提出短叶片偏置设计法是提高低比转速离心泵扬程和效率的有效方法。
It is shown after analysis that the efficiency of roto-jet pump is higher than theefficiency of multistage pump and express pump when it operates in the region of low dis-charge and high lift.
通过对提高某化工装置反应器进料泵扬程两种方法的分析对比、实验研究，提出短叶片偏置设计法是提高低比转速离心泵扬程和效率的有效方法。
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