久久精品免费-国产色-免费成人在线看-三级a做爰全过程-亚洲乱码一区二区-欧美瑟瑟-午夜美女福利-热热热色-黄色变态网站-波多野结衣激情视频-亚洲 精品 综合 精品 自拍-精品国产午夜福利在线观看-国产91免费观看-亚洲青草视频-日韩一级一区-久久国产精品-国产精品-黄页在线播放-少妇视频在线播放-天天艹av-疯狂做爰高潮videossex

The storage tank is the storage container of the long-distance oil and gas pipeline transportation medium. The oil storage tank at the first station of the oil pipeline is used to collect and store oil and to ensure the stability of the pipeline oil volume. The oil storage tank at the last station is used to receive and store incoming oil and provide it to the oil user. The gas storage tank at the gate station at the end of the gas pipeline is mainly used for peak shaving of city gas, and is gradually being replaced by underground gas storage and pipeline gas storage.