中文翻译与英英解释 | 1.【地质学；地理学】瀑布线。
2.(滑雪的)直接下滑线。
| | | fall: vi. (fell; fallen ) 1.落下；散落， ... | | line: vt. 交尾。 | |
| A fall line (or fall zone) is the geomorphologic break between an upland region of relatively hard crystalline basement rock and a coastal plain of softer sedimentary rock. A fall line is typically prominent when crossed by a river, for there will often be rapids or waterfalls. |
例句与用法 | 1. | Once past chapter 7 , you ' ll be reading about topics that are important but not necessarily on the fall line that leads straight downhill to a working driver
但是一旦你跨过了第七章，其后的章节虽然重要但对于写一个能工作的驱动程序来说并不是必须的。
| | 2. | Once past chapter 7 , you ' ll be reading about topics that are important but not necessarily on the fall line that leads straight downhill to a working driver
一旦（读）过第七章，你将学习到那些重要但是没有必要的主题，在直接指向一个正在工作的驱动的下垂线上（的内容） 。
| | 3. | The authors put forwards a new method which select the terrain profile perpendicular to falling line ( opposite direction of gradient ) to determine the candidate points on ridge and valley
摘要利用有关数学原理从理论上对地形高程断面极值法进行了分析和深入的研究，指出了该方法的不足。
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