universal angle block 万能角规 ; 万用角度盘
Johanson angle block 约翰笙角度规
ADJUSTABLE ANGLE BLOCK 可调角度规
angle gauge block 角度块规 ; 角度量块
angle-block 角块
angle block gage 量角规
Angle external threaded block valve 角形外螺纹截止阀
ciliary block angle-closure glaucoma 睫状环阻塞性闭角青光眼
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