IT专业英语词典-R ... raster scan 光栅扫描 rate adaption 速率调整 rate adaptive digital subscriber Line (RADSL) 速率自适应数字用户线 ...
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As wholesale gas falls in price, profit margins expand, and station owners are in no rush to ratchet down the price at the pump.
随着石油批发价下跌，边际利润便有所增长，并且加油站老板并不急着去逐步减少石油的零售价。
This pumping unit is made up of supporting frame, ratchet reversing gearbox, touch the pump body, make way for agencies, balance weight protection, brake mechanism.
该抽油机的主要组成结构包括机架，棘轮换向减速箱，碰泵机构，让位机构，平衡重保护装置，刹车机构。
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