She found a rose tucked under the windscreen wiper of her car one morning.一天清晨，她发现自己汽车的挡风玻璃雨刷下插着一支玫瑰。The wiper of the potentiometer is connected directly to the spindle.电位计的孤刷直接与销子连接.Perhaps you can see to the windscreen...
She dusts every day.她每天都掸灰.Recovery of valuable dusts and fumes for economic reasons is also a major application.从经济的角度回收有价值的粉尘和微尘也是其主要的应用方面.Health standard for flax, jute and ramie dusts in the air of workplace.车间空气中麻尘(...