There are many different clutch designs, but most are based on one more friction discs, pressed tightly together or against a flywheel using springs.是什么意思_There are many different clutch designs, but most are based on one more friction discs, pressed tightly together or against a flywheel using springs.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句