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.
该植物茎与根茎的构造相似，均有表皮、皮层、淀粉鞘、周维纤维、六束维管束、髓及髓射线。
Having the epidermis, cortex, starch sheath, perivascular sclerenchyma, six vascular bundles, pith and pith ray, the stem is similar to the root in their structure.
维管形成层属于侧生分生组织，包括能够产生次生木质部与次生韧皮部的纺锤状形成层原始细胞和产生髓射线的射线原始细胞。
It is a lateral meristem and contains fusiform initials giving rise to secondary xylem and phloem and ray initials giving rise to medullary rays. See also secondary growth.
并对四倍体刺槐无性系试管苗不定根的发育过程进行了解剖观察，结果表明试管苗嫩梢无潜伏根原基，不定根由诱生根原基发育形成，诱生根原基源于髓射线细胞的分裂和分化。
Latent root primordium was not found in shoots in test tubes. The induced root primordium which originated from the division and differentiation of pith ray cell developed into the adventitious roots.
并对四倍体刺槐无性系试管苗不定根的发育过程进行了解剖观察，结果表明试管苗嫩梢无潜伏根原基，不定根由诱生根原基发育形成，诱生根原基源于髓射线细胞的分裂和分化。
Latent root primordium was not found in shoots in test tubes. The induced root primordium which originated from the division and differentiation of pith ray cell developed into the adventitious roots.
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