"Offshore unit" means any fixed or floating offshore installation or structure engaged in gas or oil exploration, exploitation or production activities, or loading or unloading of oil.
“近海装置”系指从事气或石油的勘探、开发或生产活动或油的装卸的任何固定或浮动的近海装置。
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When you use the system a long time, he will have more or less the temporary document, The unloading and installation of the garbage data, it can use this time to remove these elements.