• The effect of starting operation conditions on the characters of the catalyst in the producing process of acrylonitrile through ammoxidation of propylene were studied.

    研究丙烯氨氧化制备丙烯腈反应过程开车条件催化剂特性影响

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  • The mixture must be of varying degrees of richness to suit engine operating conditions. It must be rich (have a higher percentage of fuel) for starting, acceleration, and high-speed operation.

    混合气浓度比例可以改变适应发动机运行状况。汽车启动加速高速行驶时,需要燃油浓度较高的混合气;

    youdao

  • The mixture must be of varying degrees of richness to suit engine operating conditions. It must be rich (have a higher percentage of fuel) for starting, acceleration, and high-speed operation.

    混合气浓度比例可以改变适应发动机运行状况。汽车启动加速高速行驶时,需要燃油浓度较高的混合气;

    youdao

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