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...
The courses are long and punishing, with steep gradients.这些赛道既长又有陡坡，极具挑战性。Across geographic gradients, Levins expects allopatric races or coenospecies exist.穿过地理梯度, 莱文斯预料有分布区不重叠的小种或近群种.And the evidence is that the differ...
Prostate cancer can be complicated by spontaneous intracranial haematoma.恶性前列腺肿瘤可能并发自发颅内血肿.Objective To discuss the application of neuroendoscope in spontaneous intracerebral haematoma operation.目的探讨神经内窥镜在自发性脑出血手术中的应用.Ac...
They would flap bath towels from their balconies as they chatted.他们聊天时会在阳台上抖搂浴巾。Why did people get in a flap over nuclear energy?为什么人们对核能惶恐不安呢？He drew back the tent flap and strode out into the blizzard.他拉开帐篷的门帘，大步走进暴风雪中...