Mineral oils are used to lubricate machinery.矿物油被用来润滑机器。Do not use emollients or oils to lubricate the skin.不要用润肤剂或油类来润滑皮肤。You should lubricate the wheels of your bicycle once a month.你应该每个月给自行车轮子加一次润滑油....
In drilling an oil well, mud is used to lubricate the cutting bit.钻油井时, 泥浆被用来润滑钻头.Lubricate adjuster screw threads and pivot with spray lube.使用喷雾润滑油润滑调整器螺丝螺纹和枢轴.You should lubricate the wheels of your bicycle once a mont...
他们应该侧重于修整现有的绿化植被,比如草和灌木。They should concentrate on rejuvenating the existing vegetation, like grass and shrubs.一条条新路在逐渐吞噬着绿化地带。New roads are cutting into the green belt.他的公司去年3月接管了公园的绿化和日常维护工作。His firm took over the plan...