The babbitt adjustable Hammer-Blow Sprocket Rim is for use with hard to operate gate, globe and Angle valves in overhead locations.

对于高度超过头部，操作困难的闸阀、截止阀和角阀，可以采用巴氏可调节锤击链轮。

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Rim is for use with hard to operate gate, globe and Angle valves in overhead locations.

对于高度超过头部，操作困难的闸阀、截止阀和角阀，可以采用巴氏可调节锤击链轮。

youdao

The 2.8-inch, 461k-dot capacitive touchscreen is fixed at a slight angle, making it possible to take overhead and lower-angle shots simply by rotating the entire camera.

ENGADGET

The VGA-resolution 3.2-inch display was incredibly sharp and bright, and the vari-angle functionality lets you snap overhead and below-eye-level shots with ease.

ENGADGET: Hands-on with Nikon's Coolpix P520 and L820 superzooms at CP+ (video)

Whether shooting videos overhead at a concert or inverting the screen to capture a creative self-portrait, the vari-angle LCD of the P7700 provides users the ability to rotate the screen to adapt to any shooting scenario.

ENGADGET: Nikon intros flagship Coolpix P7700 for prosumers, diminutive Coolpix S01 for fashionistas