Turn off nozzle and then the supply. There must be no leakage at the device, hose or the nozzle.

关闭喷嘴，然后关闭供应水源。这时这种装置、软管或喷嘴上必须没有泄漏。

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Residents are also prohibited from using a hose to wash off paved surfaces and must use a hose equipped with an automatic shut-off nozzle when washing their cars.

该法令同样禁止居民利用水管来冲刷光滑的路面，以及规定居民必须使用带有自动闭合喷嘴的水管来清洗车辆。

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Turn the nozzle until the word "OFF" is upper most to lock.

用后请将喷嘴调校至印有“OFF”字样的一方向上以关闭喷嘴。

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They cut off the part of the nozzle where the cracks occurred.

WSJ: SpaceX Acts Fast for New Launch

But that launch too was less than perfect, with technicians during the final days before liftoff deciding to trim off four feet of rocket-motor nozzle extensions with metal shears to address an unexpected problem with cracking.

FORBES: The Case Against SpaceX, Part II

We ran through the process a few more times, tweaking things along the way and running into new issues as we progressed -- like when the demo cube we were printing was knocked off the platform by the Stepstruder itself, or when the nozzle pressed down too hard on an object, which melted at the heat and stuck to the toolhead.

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