报道一种快速检测冰箱除臭器对乙硫醇驱除效率的气相色谱分析方法. A gas chromatographic method to quickly test the efficiency of refrigerator deodorizer in eliminating ethanethiol paper.
这钻机有变速控制。The drill has variable speed control.他发明了新的钻机之后, 许多荣耀都加在他的身上了.After he invented the new drilling machine, honors were thrust upon him.这种钻机的位置是锚定的.The rig is moored in position....