unit power plant...[继续阅读]

    circular degree...[继续阅读]

    field-ion emission microscope...[继续阅读]

    circumferential sealing;ring packing;ring seal...[继续阅读]

    tertiary coil...[继续阅读]

    点阵印刷机,点阵打印机...[继续阅读]

    single rotor...[继续阅读]

    blown ingot...[继续阅读]

    walking crane...[继续阅读]

    放射量测定器,剂量测定器...[继续阅读]