| 1. | The surface shows deep rill－like folds .
表面有深沟槽状起伏褶皱。 |
| 2. | Sand and gravel may form bars within the channel .
沙和砾石可以在沟槽内形成沙洲。 |
| 3. | The gutter has filled up with mud .
沟槽里都是泥。 |
| 4. | Some of the bars and troughs are exposed by low tide .
一些砂洲和沟槽在低潮位时，露出于水面。 |
| 5. | The scientists cannot explain the intriguing grooves .
科学家们还不能解释那些令人不解的沟槽。 |
| 6. | The lug produces a "pinched" effect contact with the groove side .
极耳产生一种“压力”作用与沟槽侧边相接触。 |
| 7. | This then allows the lower plate lug to make contact of its two corners with the slanting walls of "v" groove .
这便于下面的极板年的两角与“V”字形沟槽的两个倾斜的壁相接触。 |
| 8. | There are parallel grooves or scratches produced when the glacier moved with its load of embedded rock on the lower side .
冰川带着低处嵌着的岩石活动时，形成了这些一条条平行的沟槽或擦痕。 |
| 9. | These modifications are usually in the form of surface deformations from embossing by rolls, fluted surfaces, and other fibers .
这些变化通常是受滚筒沟槽表面以及受其他纤维的挤压形成表面变形。 |
| 10. | Grooved pins - full - length parallel grooved , with pilot
槽销带导杆及全长平行沟槽 |
