凸輪軸和曲軸協調旋轉, 但速度僅是曲軸的一半.The camshaft rotates in phase with the crankshaft, but at half its speed.在發動機里, 機油被供應到旋轉在其支承軸內的曲軸和凸輪軸軸頸上.In the engine, oil is supplied to crankshaft and camshaft journals rotating in their support...
這種外科手術甚至可以用來切除癌性腫瘤。This type of surgery could even be used to extract cancerous growths.他患有腎癌,還有腦部和肺部的繼發性腫瘤。He had kidney cancer, with secondary tumours in the brain and lungs.腫瘤學是研究腫瘤的醫學分支。Oncology is the branch of medi...
Variation among humans is limited to the possible permutations of our genes.人類的變異受限于我們的基因可能存在哪些排列。These permutations multiply towards infinity.這些排列可以增加到無窮大。The possible permutations of x, y and z are xyz, xzy, yxz, yzx, ...