velamen

常见例句

The roots of many orchids and other epiphytes developed a sheath of dead cells, the velamen, which helps to absorb water from the atmosphere.
許多蘭科植物的根和一些附生植物的死細胞鞘以及根被都可以幫助植物從空氣中吸收水分。
Objective To study Non-PVC officinal compounding velamen and glass bottle with transfuse of compatibility.
目的研究非PVC多層共擠膜輸液袋及玻璃瓶與大容量注射劑的相容性。
Objective To discuss the application of small incision used in uterectomy under velamen.
目的:探討小切口筋膜內子宮切除術在臨牀中的應用價值。
In terms of water economizing effect,mantles of velamen have better effect tha...
從節水傚率講覆膜的高於覆蓋樹皮,覆蓋樹皮高於覆蓋石子。
The exodermis cell wall possesses the highest auto-fluorescent intensity whereas that of velamen the lowest.
自發熒光強度以外皮層的最高，根被的最低。
The observation on the microstructure of six orchids demonstrated that they have the typical orchidaceous roots with velamen and thick cortical tissue.
本文對密花石斛等六種蘭科植物根的顯微結搆進行了比較觀察。