您要查找的是不是：
- Two from five is a simple subtraction. 五减二是简单的减法。
- If you subtract 2 from 8, you get 6. 8减去2是6。
- There are some electrical apparatus in the room. 房间里有些电器。
- Subtract 3 from 7 and you have 4. 七减三得四。
- They have installed wireless apparatus on board. 他们已在船上安装了无线电设备。
- The astronauts have special breathing apparatus. 宇航员有特殊的呼吸装置。
- The television men have set up their apparatus. 电视工作人员已经安装好了他们的器材。
- subtraction apparatus 减法装置
- An apparatus for measuring gases. 气体贮存计量器用来测量气体的一种工具
- The vaulting horse is a difficult piece of apparatus to master. 鞍马是很难掌握的器械。
- The little girl has begun to learn to add and subtract. 这小女孩已在学做加减法了。
- The demonstrators set up apparatus for the experiment. 示范者安装好了实验装置。
- We do addition and subtraction in arithmetic. 在算术里，我们作加减运算。
- If you subtract 3 from 5, you get 2. 五减去三就得二。
- One that condenses, especially an apparatus used to condense vapor. 冷凝器冷凝器具，尤指用于冷却气体的设备
- The new monitor apparatus is automatically controlled. 这套新的监护仪是自动控制的。
- When we do subtraction,we take things away. 当我们做减法的时候，我们取走事物。
- An apparatus for lifting heavy or cumbersome objects. 起重机用来提举重物或难处理物体的设备
- Firemen needed breathing apparatus to enter the burning house. 消防队员需用呼吸器械才能进入燃烧著的房屋。
- If you subtract two from five you get three. 五减去二剩下三。
