Then it's recycled back into the plumbing system.

最后，经过回收的水又流回了冲水系统。

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Hot water can dissolve tiny amounts of lead from your plumbing system.

热水会分解管道系统中的微量铅。

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Nyiragongo has an intricate plumbing system, widespread as the roots of a tree.

尼拉贡戈火山的火山管道构造复杂，宛如树木盘根错节。

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Rather than using rubber hoses to connect the stationary and moving parts of the building, 3sixty's ingenious plumbing system employs horizontal ring-shaped pipes made of steel.

ECONOMIST: Monitor

It's gonna happen wrong, and the guy's gonna be late because his dog got run over, and he's going to fix the wrong pipe, and when he takes it apart he's gonna say, 'Oops, the whole plumbing system's gonna have to go and dah dah dah and etc. etc. etc.

WSJ: Bari Weiss: David Mamet's Coming Out Party

The payments system, in effect, is the plumbing for Britain's financial system, which is often said to be backward in comparison with other countries.

BBC: UK banking reforms: What's new?