单管孔的英文

pore solitary

solitary pore

• 单:    singular number fa ...
• 管:    pipe; tube
• 孔:    hole; opening; ape ...

例句与用法

1. Hymenanthesoides : growth rings boundaries distinct
   单管孔：导管散生。
2. Vessels solitary with angular outline ; perforation plates scalariform ; intervessel pits and vessel - ray pitting alternate to scalariform ; helical thickenings only in vessel elements tails
   导管横切面为多角形，单管孔，散生。螺纹加厚仅出现导管分子尾端。梯状穿孔为主。
3. Wood semi - ring - porous ; vessels solitary with angular outline ; perforation plates reticulate and scalariform ; intervessel pits and vessel - ray pitting alternate ; helical thickenings throughout body of vessel elements
   单管孔，散生；整个导管分子上具螺纹加厚。网状和梯状穿孔。