• 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,星期天下午渥太华芝加哥起飞的、载有44名乘客联合快递区域飞机在渥太华着陆滑出跑道但是没有受伤

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  • 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扬程两种方法分析对比、实验研究,提出短叶片偏置设计法提高转速离心泵扬程效率的有效方法。

    youdao

  • 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扬程两种方法分析对比、实验研究,提出短叶片偏置设计法提高转速离心泵扬程效率的有效方法。

    youdao

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