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The enlarged end of the lower rod sleeve is formed with at least one through hole facing to the porous piece.
中下杆套筒扩大结束形成至少在面向一块多孔洞之一。
youdao
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The enlarged end of the lower rod sleeve is formed with at least one through hole facing to the porous piece.
中下杆套筒扩大结束形成至少在面向一块多孔洞之一。
youdao