net vein中文什么意思

net: adj. 净的，纯的 (opp. gross) 无虚价的 ...
vein: n. 1.【解剖学】静脉；〔口语〕血管。 2.【植物；植 ...
mulberry yellow net vein virus: 桑树黄网脉病毒; 桑树黄网脉簿
be in the vein for: 有...兴致, 有...心情
vein: n. 1.【解剖学】静脉；〔口语〕血管。 2.【植物；植物学】叶脉；【动物；动物学】翅脉；【地质学；地理学】矿脉，岩脉；水脉。 3.裂痕，裂缝，缺隙。 4.脉，筋；纹理。 5.气质，倾向；性情，性格，风格；心境，情绪。 systemic veins 大静脉。 a vein of ore 矿脉。 a vein of humour 幽默气质。 I am not in (the) vein just now. 我现在没有兴致。 in a humorous vein 带着诙谐的情绪。 in the giving vein在慷慨的情绪下。 in the vein for 想…，有心…。 vt. 〔常用被动语态〕使有筋脉[纹理]，使显出静脉。 a piece of veined crape 一块花纹绉绸。 veinprint (手背上的)静脉纹(每个人都不相同)。

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The chemical components of silkworm pupa crust were analyzed , and its microstructure was characterized by using scanning electron microscope . the existing realtion of among chitin 、 protein and inorganic salt in silkworm pupa crust has been observed . the results show that the major protion of silkworm pupa chitin is in pupa crust , and it accounts for about one forth of crust weight , the out surface of pupa crust is regular polygon net vein characteristics . chitin takes honeycomb shape in chitin - protein complex and conjugated with protein . the inner space of chitin - protein complex net was filled with inorganic salts . thus the theory basis was provided for working out the process route of isolation pupa chitin
对桑蚕蛹皮的成分、结构进行了化学及扫描电镜分析，确定其含有的主要成分及含甲壳素的数量，并对其中的甲壳素、蛋白质和无机盐三者之间的存在方式进行了观察.研究结果表明，蛹体中的甲壳素与灰分主要含在蛹皮中，甲壳素占整个蛹体成分的2 . 71 % ，占蛹皮重量的25 . 5 % ，蛹皮外表面呈规整的多边形网状结构，蛹皮中蛋白质与蜂窝状的甲壳素相结合，呈层状分布，颗粒状的无机盐填充在甲壳素/蛋白质复合物构成的蜂窝状的空隙中.这为制定提取蛹甲壳素的工艺路线提供了理论依据

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