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fall line 1.【地質學;地理學】瀑布線。2.(滑雪的)直接下滑線。

fall out

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 摘要利用有關數學原理從理論上對地形高程斷面極值法進行了分析和深入的研究,指出了該方法的不足。

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(讀)過第七章,你將學習到那些重要但是沒有必要的主題,在直接指向一個正在工作的驅動的下垂線上(的內容) 。

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 但是一旦你跨過了第七章,其后的章節雖然重要但對于寫一個能工作的驅動程序來說并不是必須的。