髓 2 髓(pith)和髓射线(pith ray): 髓:位于中央,常为薄壁组织,有的为中空的髓腔(连翘)。 髓射线(初生射线):两个维管束之间的薄壁组织。
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(3)髓射线(medullary ray): 位于初生维管束之间的薄壁组织,内通髓 部,外达皮层。 具潜在分生能力,可形成束间形成层。
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... medullary ray of kidney 肾髓质射线 medullary ray pith ray 髓射线 secondary medullary ray 次生髓射线 ...
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当如此精确的加工吉他面板时,其髓射线和生长纹理线是垂直的。
When done accurately this method of processing guitar tops yields wood that displays the medullary rays that run at a right angle to the growth of the grain.
根状茎的次生结构由外向内为表皮,皮层和维管柱,髓射线发达。
The secondary structure of rhizome include epiderm, cortex and vascular tissue, pith ray is developed.
从横切面上观察到,不定根原基起源于髓射线与维管形成层交叉的部位。
From cross sections of stems-cuttings, a primordium of adventitious roots originates from the cross region of pith rays and vascular cambium.
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