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oil-gas pipeline maintenance
释义
oil-gas pipeline maintenance
Encyclopedia
工学
油气管道维修
释
oil-gas pipeline maintenance
油气管道维修
保持和恢复油气运输管道及其设备正常运行的主要措施。
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boating on West Lake with willows
boatlike house of Li nationality
Boatman
Boatman's Daughter
boatman's haozi
boatman’s knot
boat-operated lift net fishing
boat patrol
Boat People
boat racing
boat returning amid wind and rain
BOB
Bobai Museum
Bobai Xian
bobak marmot
BoBantai
Bobath handshake
Bobath握手
Bobbie Ann Mason
bobbin
bobbin type
bobbin winding form
bobbin yarn
Bob Clampett
Bob Costas
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