With this method, the operator will have to calibrate zero and span on one background Air and need to change the pressure when backgrounds are changed.

使用此方法标定零点和量程在一个背景气情况下，在需要改变背景气时改变压力。

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An air bubble ascending from the ocean floor contorts and twists into a semicircle as a wave breaks in the background.

当波浪在背景中破碎时，从海底升起的气泡扭曲成半圆形。

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Move seven feet away, and you're "close to background, " i.e., breathing normal air.

站到七尺以外的话，你已经非常接近背景水平，也就是说呼吸到正常的空气。

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Planning Minister Ginandjar Kartasasmita, who has an air force background and has been discussed as a possible candidate, dismissed Juwono's comments.

CNN: The Unlikely 'Military Man'

In the background still, however, are the security and hassle factors associated with standard air travel.

CNN: Corporate air charters take wing

He shares this responsibility with the Carrier Air Group (CAG) Commander, who is also a Navy captain with a similar aviation background.

FORBES: What Is It Like To Be The Commanding Officer Of An Aircraft Carrier?