oil transporting pump unit 输油泵机组
Dropping off infantry has a more tactical role since it is more about unit insertion than transporting Armor.
空投步兵更多的是起到战术作用，因为比起运送装甲来，他更多的是单位的穿插。
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This unit also includes the buying, selling and transporting of crude oil and petroleum products.
FORBES: Higher Crude Prices Lift Refining Margins And Conoco Stock Price
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