若给甲板机械按照海水冷却管，则可共用甲板冲洗管路作为冷却管路。
If cooling sea water pipe is provided for deck machinery, wash deck lines shall be commonly used for cooling line.
由二套BIA机械密封背靠背安装，共用一个弹簧可组成一套双端面机械密封型式。
Two sets of back-to-back assembled mechanical seal BIA, and together with a Shared spring can form a double mechanical seal.
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