The showerhead massage is the control that switches the water from a steady stream to a pulsating jet spray.

淋浴喷头按摩是通过控制水流的脉动和喷洒来完成的。

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But protect a jet engine against saltwater corrosion and position it high on the craft so the spray doesn't enter the intake during take-off and landing, and it will work fine.

但为了保护喷气发动机免遭海水腐蚀，应该把它安装在飞行器的顶部。这样飞行器在起飞或者降落时溅起的水花不会打到进气口处。

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Special testing apparatus was built to study the effect of arc divided flow on the jet fluctuation and the inhibiting effect of new spray gun on the jet fluctuation.

为了研究电弧分流对射流脉动的影响以及检验新喷枪对射流脉动的抑制作用，而建立了专门的试验装置并进行了相关的试验。

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