... 无方内接头: malleable cast iron pipe fittings--type size--no-square inner joint (nipples)malleable cast iron pipe fittings-type size-no-square inner joint 无方式命令: modele commandmodeless command 无方向性: non-directional◇无方向性天线 non-directional antenna; unipole antenna; 无方向性线圈 astatic coil ...
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