median effective dose;ED50...[继续阅读]

    median lethal dose;LD50...[继续阅读]

    half-life period...[继续阅读]

    lethal dose 50%;LD50...[继续阅读]

    lethal concentration 50%;LC50...[继续阅读]

    health-care measure...[继续阅读]

    health work...[继续阅读]

    rainfall runoff,storm runoff...[继续阅读]

    storm water pollution...[继续阅读]

    aeration tank...[继续阅读]