There are many different clutch designs, but most are based on one more friction discs, pressed tightly together or against a flywheel using springs.
离合器有很多类型，但大多数离合器都有一个或多个摩擦片，用弹簧紧紧压着飞轮。
There are many different clutch designs, but most are based on one or more friction discs, pressed tightly together or against a flywheel using springs.
离合器有很大类型，但大多数离合器都有一个或多个摩擦片，用弹簧紧紧压着飞轮。
The crowd pressed together so tightly that we could hardly breathe.
人群挤在一起， 我们几乎喘不过气来。
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