您要查找的是不是：
- Health standard for rock wool dust in the air of workplace. 车间空气中岩棉粉尘卫生标准.
- This is a device for squaring the circle. 这是一个不可能实现的方案。
- A device for equalizing pressure or strain. 均衡器用来使电压或电流保持平稳的设备
- A device for indicating wind direction. 风标用来显示风向的设施
- A machine or device for separating cream from milk. 乳脂分离器一种把乳脂从牛奶中分离出来的器具
- A device for igniting the charge of a firearm. 枪机一种用来点燃火器中火药的装置
- He's outgrown his passion for rock music. 随着年龄的增长，他已对摇滚乐失去了热情。
- They use television advertising as a device for stimulating demand. 他们利用电视广告作为刺激需求的方法。
- He has a craze for rock and roll. 他热衷于摇滚乐。
- Rock dust on the green felt, cowboy ballads on the jukebox. 石头的灰尘布满了绿色地毯，而牛仔民谣则在点唱机里播放着。
- A device for projecting sound waves, as in a loudspeaker. 角状扩音器一种用来产生声波的装置，如扬声器
- The 1970s were best known for rock music. 20世纪70年代以摇滚乐而闻名。
- And their affection for rock tea are all. 对岩茶的情感
- A device for guiding a tool or for holding machine work in place. 夹具，装配架导引工具或使机器固定在适当位置上运转的设备
- She has a passion for rock music. 她热爱摇滚乐。
- A mechanical device for lighting a cigarette, cigar, or pipe. 打火机点燃香烟、雪茄和烟斗的机械装置
- A toothed device for crushing and beating flax or hemp. 剥麻机挤榨和打碎亚麻或大麻的具齿装置
- A device for measuring the head. 头测量器测量头颅的仪器
- After fumes and rock dust have settled, the rock brought down by the explosion is removed, often on conveyor belts. 等硝烟和尘埃散尽后，再将炸下的岩土运出去，通常是用传送带。
- A device for measuring the speed of sound in water. 速度计，速度表用于测量声音在水中的速度的仪器
