velamen怎么读：[və'leimən]
velamen是什么意思：n. [解]膜，帆；[植]根被
velamen的例句和用法
1. I did not know when I stared to wander. It seemed as if my velamen had been pulled out and floated down along a branch of the river.
我并未察觉到我开始漂荡，彷佛我的根被拔了起来，彷佛我沿著一条河的支流往下漂。
2. The authors studied the bright transform surface velamen of forging Al-alloy LD10, chose the best technical dispensing and parameters.
陈利，郑晓华，楼白杨，楼程华，马晓春对LD10锻件的光亮转化膜进行了研究，选出最佳工艺配方及参数。
3. The roots of many orchids and other epiphytes developed a sheath of dead cells, the velamen, which helps to absorb water from the atmosphere.
许多兰科植物的根和一些附生植物的死细胞鞘以及根被都可以帮助植物从空气中吸收水分。
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