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The pull rod is screwed into the inside thread of the anchor head.
这是钻杆丝扣油，不能用在钻铤丝扣上。
youdao
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The rear end of the limit screw rod is provided with a blocking head.
所述限位螺杆后端设有一阻头。
youdao
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The rear end of the limit screw rod is provided with a blocking head.
所述限位螺杆后端设有一阻头。
youdao