• A number of vertical line sources was generally caused by catalytic agents, dispersed from falling pyrotechnical flares of an airplane or a rocket.

    下投式飞机火箭分散催化剂一般都形成若干条垂直线

    youdao

  • A number of vertical line sources was generally caused by catalytic agents, dispersed from falling pyrotechnical flares of an airplane or a rocket.

    下投式飞机火箭分散催化剂一般都形成若干条垂直线

    youdao

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