angle check valve [机] 直角止回阀 ; 直角型单向阀
Trim Angle Check 修剪角检查 ; 修边角度检查 ; 裁剪角检查
angle lift check valve 角接式升降止逆阀
tilt angle check 倾斜角检查
Angle Check Nut Wrenches 角度检查螺母扳手
Angle square: Use it for layout, cut-line marking or to check corners for squareness.
角尺：用它做版面设计，制作图例或检查矩形的角。
The technician can manipulate the lens to check the light transmission from every Angle and determine whether a part of the surface requires additional polishing.
技师能够从各个角度熟练控制镜头来检查光传导并判断镜头表面是否需要更多打光。
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