例句與用法

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1. The tourists have been picking leaves and cutting their names on the tree-trunk .
   游客們不斷地采摘樹葉，把名字刻在樹干上。
2. The diameter of the tree - trunk is about 2 meters
   這樹干的直徑大約是2米。
3. I left him yonder in the forest , withdrawn into a secret dell , by a mossy tree - trunk , and near a melancholy brook
   我把他留在那邊那座林子里了，他退縮到一個(gè)秘密的山谷里，離一條憂郁的小溪不遠(yuǎn)，就在一棵長滿青苔的樹干旁邊！
4. After switching on powerful arc lights , they saw great stalagmites - - some of them over forty feet high - - rising up like tree - trunks to meet the stalactites suspended from the roof
   他們打開強(qiáng)力弧光燈，看見一株株巨大的石筍，有的高達(dá)40英尺，象樹干似的向上長著，與洞頂懸掛下來的鐘乳石相接。
5. This paper presents our global approach to model tree - trunk scattering at vhf / uhf . in this approach , we consider plane wave scattering ( in time domain ) from the tree trunks above the soil
   在vhf uhf低頻段，由于樹冠對入射脈沖波近似“透明” ，因此樹散射的物理模型被簡化為樹干散射的物理模型。