The system consists of two air blowers (one of them as a common spare), air piping and grid distribution pipe.

这个系统包括两个送风机（其中一个备用）、空气管和氧化空气分布管。

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Some pumps used for 1000 hours, the ship propeller in the use of time is also greatly reduced because of the efficiency of air piping.

某些水泵使用1000小时左右即出现严重的空蚀，船舶螺旋桨在使用一段时间后也因空蚀而效率大大降低。

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Reduced air piping with service valves must be foreseen alongside the walkway on main deck until the fore store room inclusive. The position will be determined together.

必须提前考虑沿着主甲板上的步桥到艏部储存间，且包括储藏间在内布置压缩空气管及服务阀门，位置将由双方共同决定。

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The operating room itself contained a maze of plastic piping that twisted though the air between the heart-and-lung machine and the operating table.

NEWYORKER: The Operator

On most jet aircraft, hot air from the engines is routed through piping in the wings, tail and engine openings to heat their surfaces and prevent icing.

CNN: Airplane deicing: The how and why

The geothermal system heats and cools using piping that goes deep within the earth, where temperatures are warmer than outside air in the winter and cooler in the summer.

WSJ: Green Goes Mainstream for New Homes��WSJ Mansion