英语词汇primary leaf怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

双语例句

1
The paper studied effects of GA_3 and IAA on cellulase activity in abscission zone from petiole of primary leaves of bean, cotyledon petioles and boll petioles of cotton.
赤霉酸（GA_3）处理菜豆叶柄和棉苗子叶柄外植体，离区的纤维素酶活力增加，而吲哚乙酸（IAA）则抑制离区纤维索酶的活力。
2
The soybean primary leaves developed from 7 layers of original cells, and 3-4 layers of palisade cells(PSC)and 2 layers of paraveinal Mesophyll cells (PVM) were formed in these leaves.
大豆初生叶一般由7层原始细胞发育而成，通常形成3—4层栅拦细胞及2层脉侧叶肉细胞。
3
The increasing rate of width and length of primary leaves decreased obviously after 10 days planting. The leaves got their maximum areas after 15 days while L. sative was just at the 3nd instar stage.
经10天左右的培养，叶片长、宽度增长速率明显减慢，此时是接种斑潜蝇的最佳时机，15天后即斑潜蝇幼虫生长到3龄时，叶面积达最大。

单词	primary leaf
释义	primary leaf 简明释义初叶，[植] 初生叶网络释义 1 ?初生叶初生叶双语例句 1 The paper studied effects of GA_3 and IAA on cellulase activity in abscission zone from petiole of primary leaves of bean, cotyledon petioles and boll petioles of cotton. 赤霉酸（GA_3）处理菜豆叶柄和棉苗子叶柄外植体，离区的纤维素酶活力增加，而吲哚乙酸（IAA）则抑制离区纤维索酶的活力。 2 The soybean primary leaves developed from 7 layers of original cells, and 3-4 layers of palisade cells(PSC)and 2 layers of paraveinal Mesophyll cells (PVM) were formed in these leaves. 大豆初生叶一般由7层原始细胞发育而成，通常形成3—4层栅拦细胞及2层脉侧叶肉细胞。 3 The increasing rate of width and length of primary leaves decreased obviously after 10 days planting. The leaves got their maximum areas after 15 days while L. sative was just at the 3nd instar stage. 经10天左右的培养，叶片长、宽度增长速率明显减慢，此时是接种斑潜蝇的最佳时机，15天后即斑潜蝇幼虫生长到3龄时，叶面积达最大。
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