Kenya's population is growing at 4.1 per cent per annum.肯尼亚人口正以每年4.1%的速度增长。The agency places about 4,000 young persons per annum.该代理机构每年为4，000名年轻人安排工作。Interest is paid at the rate of 1 % per annum at present.目前每年的利率...
方法是用浸透丙酮的布块在涂层上面擦拭, 若固化不良,涂层会被溶解.Acetone is impregnated fabric coating, above, to curing coatings will be dissolved.或者用含丙酮的网垫擦洗光学表面.Scrub each optical surface with a gauze pad soaked in acetone.钢瓶内填充着充满了浸透了溶剂, 通常是丙酮的多孔渗水...
消防员花了两个小时才把传动带切断，把他救了出来。It took firemen two hours to cut through the drive belt to free him.转盘由一根传动带与电机相连。The turning disc is connected by a drive belt to an electric motor.车厢的传动带又通常称之为动力传动系统.The train of the car can is ...