| 1. | The leaves of the electroscope slowly diverge .
验电器的叶片慢慢张开。 |
| 2. | Spur leaves must have good light .
短果枝的叶片必须有充分的光照。 |
| 3. | Leaves and blades are cut at regular intervals .
按有规律的间隔割取所需叶片。 |
| 4. | The unit is sturdy and the blades are normally deep .
这种设备坚实可靠，叶片深度正常。 |
| 5. | Water wheel is a big wheel with blades around the rim .
水轮车轮子很大，轮缘周围装有叶片。 |
| 6. | Explain why the vanes rotate when they are illuminated .
试解释：叶片被照亮时为什么会旋转。 |
| 7. | The transacetylase system was also present in spinach leaves .
在菠菜叶片中也存在着转乙酰酶系统。 |
| 8. | Fluoride injury often is characterized by tip burn of leaves .
氟化物危害的特点是叶片顶尖灼燃现象。 |
| 9. | In a steam turbine, steam from pipes is directed onto the blades .
涡轮机内的蒸汽从管内导至叶片上。 |
| 10. | The blade is clamped and excited into some mode of vibration .
叶片夹好后，被激发进入某种振动状态。 |
