其中铰链、滑轨、合页和锁具在生活中使用频率更高，因而显得更为重要。

Including hinges, slides, hinges and locks the frequency of use higher in life, and thus even more important.

youdao

其中铰链、滑轨、合页和锁具在生活中使用频率更高，因而显得更为重要。

Including hinges, slides, hinges and locks the frequency of use higher in life, and thus even more important.

youdao