螺纹加厚 meaning in Chinese
spiral thickening
Examples
- Fibres with thin - to thick - walled
螺纹加厚出现整个导管分子壁上。 - Fibres with thin - to thick - walled
螺纹加厚出现在导管分子壁上。 - 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。 - 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。