Teddy clucked his tongue like a disapproving English matron.特迪咂了咂舌头，活像个不以为然的英国女舍监。The young nurse pulled a face at the Matron's retreating figure.看着护士长离去的身影，这个年轻的护士做了个鬼脸。The Matron at the nursing home expressed a wi...
请问广东清远那有生产取向电工钢的 吗 ?是生产卷料的!Guangdong Qingyuan Will it have a production - oriented electrical steel of it?冷轧成型机,是以金属薄板或卷料为原料.Cold rolling machine form a metal coil with numbers of rollers.适用于全自动装卸卷料的滑差轴, 保证正反转时卷芯不移位,不松动....
Results after the reservoirs building, the maximum variation was scouring armoring for river bed downstream reservoir.天然河流修建水库后, 下游河道发生的最大变化就是河床冲刷粗化.Also the construction and usage of in situ armoring machine for fiber o...