In this test you are given earphones to wear, which are attached to a machine.
在这个测试中，你给出了耳机戴上，这是连接到一个机器。
A test platform is built and piston ring wear is simulated in YC4108D diesel engine.
以YC 4108d柴油机为研究对象，构建试验平台，模拟活塞环磨损。
A test platform is built and piston ring wear is simulated in YC4108D diesel engine.
以YC 4108d柴油机为研究对象，构建试验平台，模拟活塞环磨损。
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