| 1. | The roots are more tender than the tops .
根部比树冠更柔嫩。 |
| 2. | Pruning, by removing part of the top, alters this ratio .
修剪通过剪除部分树冠而改变根冠比。 |
| 3. | Reproduce naturally in the open rather than under an overstory .
宁在空旷地而不是树冠下自然繁殖。 |
| 4. | The root system of the apple tree grows in proportion to the top .
苹果根系的生长与树冠生长成正比。 |
| 5. | Ropes are also used to facilitate movement while in the tree crown .
在树冠里时，绳索还被用来协助活动。 |
| 6. | Treating each tree as a separate scaffold of a very low-headed tree .
将每棵树作为一个树冠很矮的骨干枝来处理。 |
| 7. | The outer zones are the conducting routes between the crown and the roots .
其外层环带还有沟通树冠和树根的运输线。 |
| 8. | The labeling substance is unevenly distributed through the crown of the marked trees .
标记物质不能均匀地分布于标记树的整个树冠上。 |
| 9. | Within these trees flowering is often heaviest on the sun-facing side of the crown .
而在这些材木中，树冠向阳的一面通常是开花最繁茂。 |
| 10. | There may be a need for retarding growth chemically to keep trees within bounds .
可能需要用化学剂抑制生长，使树冠保持在一定的范围内。 |
