The front cover exactly matches this shape and also has a raised circular area that fits into a matching countersunk area of the block in front of the main bearing.是什么意思_The front cover exactly matches this shape and also has a raised circular area that fits into a matching countersunk area of the block in front of the main bearing.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句