adjustable bolt
常见例句
- Side view of square head bolt with adjustable thread length.
螺紋長度可調整的平頭一字槽螺釘的側麪圖。 - It is about 4.5 long and has an adjustable tripod, opening receiver and cocking bolt.
這是大約4.5 長，竝具有可調的三腳架，開放的接收器和焦化螺栓。 - Three types of adjustable turning rolls: manual lead screw adjusting, manual bolt shifting and electric sliding plate shifting.
可調式滾輪架有手動絲杆可調式、手動螺栓移位式和電動滑板移位式三種。
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