Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/5b18bc40d06725279513dbdd24158739.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 setscrew英英字典_setscrew剑桥英语解释_setscrew柯林斯英文解释_甲百汇小鸡词典
1. N a screw that fits into the boss or hub of a wheel, coupling, cam, etc, and prevents motion of the part relative to the shaft on which it is mounted 固定螺丝钉