foreign debt,loan from foreign powers,foreign loan...[继续阅读]

    zero scale mark...[继续阅读]

    pressure indicator...[继续阅读]

    average speed,mean velocity...[继续阅读]

    percussion boring...[继续阅读]

    substantial modification,cardinal change...[继续阅读]

    prompt neutron fraction...[继续阅读]

    year-book,annual...[继续阅读]

    storage routing innatural channel...[继续阅读]

    expansion bolt...[继续阅读]