如果你打算走精油路线，那就要熟读所有的安全指示。
If you're going to go down the essential oils route, then be sure to read up on safety tips first.
我国各大化肥装置的大机组油路或多或少存在着油路不净、流通不畅而严重威胁装置安全运行的事例。
The turbine in the big fertilizer factory of our country has some problems such as dirty oil way, blocking etc.
主油路中装有安全阀以控制压缩机轴承中的油压。
Cast iron relief valve in main oil system to control oil pressure to the compressor bearings.
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