... 落锤试验，落重试验 drop hammer test 吊架 drop hanger 落牌指示器 drop indicator board ...
基于8个网页-相关网页
drop-hanger frame 吊架
ball-bearing-bracket drop hanger 球轴承窝吊架
drop-hanger bearing 悬挂轴承
drop-hanger 吊钩
drop-hanger E bearing 悬挂轴承
The way leading to occurrence of drop casualty accident from hanger is discovered and some preventive measures are put forward.
找出了导致吊架坠落伤亡事故发生的途径，并提出了一些预防措施。
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