| 1. | Rub the walls down well before applying new paint .
在涂上新油漆之前先将墙磨平。 |
| 2. | It takes about four or five years to grind and polish it .
把它磨平擦光就得四五年工夫。 |
| 3. | The crested top was milled and knurled like the knob on a safe .
冠毛茸茸的顶部早已磨平，酷似保险箱的隆起球形旋钮。 |
| 4. | After setting, the surfaces of the specimens are ground down using carborundum and alumina .
凝固之后，样品表面连续用金钢砂或氧化铝磨平。 |
| 5. | The edge of the disc had been machined flat / smooth
圆盘的边缘已用机器磨平[光] |
| 6. | Figure 4 : flattened cornea corrects shortsightedness
图四：磨平后的角膜已将近视矫正 |
| 7. | Figure 3 : ground corner flap can correct the shortsightedness
图三：磨平后的角膜可将近视矫正 |
| 8. | There is no tread on the tyre - you should put on a new one
这条轮胎已经磨平了，你应该换一条新的。 |
| 9. | There is no tread on the tire - you should put on a new one
这条轮胎已经磨平了，你应该换一条新的。 |
| 10. | There ' s no tread on this tyre - you should put on a new one
这轮胎胎面花纹已被磨平-你应该换一个新的。 |
