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英汉词典

单词: 

chalaza是什么意思,chalaza怎么读,

chalaza

chalaza读音发音

英式发音:[kəˈleɪzə] 美式发音:[kəˈleɪzə]

单词解释:

n. (植物) 合点;卵带;(细胞)卵黄系带 [ 复数 chalazae或chalazas ]

常用句子

1.When ovule orientation is orthotropous the chalaza corresponds to the point where the funicle is attached but in anatropous and campylotropous ovules the chalaza is some distance from the funicle .

当胚珠的方向是直生胚珠时,合点和珠柄连成一条直线,当胚珠是倒生胚珠或弯生胚珠时,合点和珠柄之间有一定的距离。

2.When ovule orientation is orthotropous the chalaza corresponds to the point where the funicle is attached but in anatropous and campylotropous ovules the chalaza is some distance from the funicle .

当胚珠的方向是直生胚珠时,合点和珠柄连成一条直线,当胚珠是倒生胚珠或弯生胚珠时,合点和珠柄之间有一定的距离。

3.With the embryo development, most of the endosperm degenerated, and the cells near chalaza entered the chalaza, digested it and further nourished the embryo.

合点端的胚乳细胞则侵入合点珠心组织,为胚进一步发育提供营养。

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