螺紋加厚 的英文怎麼說
中文拼音 [luówénjiāhòu]
螺紋加厚
英文
spiral thickening-
Vessels solitary with angular outline ; perforation plates scalariform ; intervessel pits and vessel - ray pitting alternate to scalariform ; helical thickenings only in vessel elements tails
導管橫切面為多角形,單管孔,散生。螺紋加厚僅出現導管分子尾端。梯狀穿孔為主。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
單管孔,散生;整個導管分子上具螺紋加厚。網狀和梯狀穿孔。Fibres with thin - to thick - walled
螺紋加厚出現整個導管分子壁上。
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