紧固螺丝 clamp screw; fasten screw; fastening screw; fix screw; holding screw 紧固螺纹 binding thread; fastening thread; holding thread .
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Cast iron clamp with screw to fasten the apparatus to rostrum edges at will for demonstration.
支架采用铸铁浇铸成型，下面配有紧固十字螺钉，可任意紧固在讲台上，进行演示。
Inspect is that the all connect be ruggedization, is that the screw of bracket be ruggedization, is that the connection be ruggedization, the regulate and the fasten be needed.
检查所有的连接是不是牢固，指甲胫骨的螺丝是不是牢固，接线是不是牢固，调整和紧固是必要的。
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