This will provide a protective shield around the central vacuum tubing to help prevent it from being crushed or punctured.

这样可以为中央真空管道提供防护屏以免被压碎或击穿。

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Mount central vacuums on a wall away from the grooming area so only the overhead vacuum hose is in the area where you'll be working.

把中央吸尘器装在一堵远离梳洗区的墙上，这样的话，架空吸尘器的排气管就可以正好放在你将要工作的地方。

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Tube Web obstruction property of Roots central vacuum cleaning system is analyzed with fluid mechanics and industry ventilate principle.

应用流体力学和工业通风原理，分析了罗茨中央真空吸尘系统的管网阻力特性；

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During the summer, winds typically kick up at about 1 p.m. as California's steamy Central Valley creates a vacuum that pulls in cool air from the Bay.

WSJ: Before America's Cup Capsize, Concerns About Safety

The Central Bank will turn on its dollar vacuum machine and suck them out of the market every day at dollar auctions, building reserves.

FORBES: Brazil's Strengthening Currency Poses Competition Problem

This is a pity, not least because the new bank will operate in far more of a political vacuum than such notably independent central banks as the Bundesbank and the Fed.

ECONOMIST: Wim Duisenberg, in the rough