extine的意思是"花粉粒外壁、外壁"，还有外膜的意思，读音为['ekstain]，在英语中以名词出现较多，在《荷林斯高阶英汉词典》中，共找到25个与extine相关的例句。
Extine的释义
1.花粉粒外壁
例句:But the spores of 6 species are similar in shape, extine thickness and size. (但六种孢子的形态、大小、外壁厚度等方面具有较大的相似性。)
2.外壁
例句:All these results indicate that MS1142 gene plays important roles in pollen development and extine pattern formation. (以上结果说明MS1142基因在小孢子的发育及花粉外壁形成过程中起重要作用。)
3.外膜
例句:The ornamentation of extine is reticulate, reticulate-microperforate or microperforate. (外壁纹饰网状，某些种尚具或为细小的穿孔。)
4.孢子外壁、外膜
例句:An extine with its specific pattern had already been formed, when microspores were released from tetrads. (翻译:当小孢子从四分体中释放出来，特殊类型的外壁已经形成。)
例句
1. The ornamentation of extine is reticulate, reticulate-microperforate or microperforate. (翻译:外壁纹饰网状，某些种尚具或为细小的穿孔。)
2. An extine with its specific pattern had already been formed, when microspores were released from tetrads. (翻译:当小孢子从四分体中释放出来，特殊类型的外壁已经形成。)
3. However, differences exist in pollen size, aperture, extine thickness and ornamentation. (翻译:但在花粉大小、萌发孔形状、外壁厚度以及表面纹饰等方面存在差异。)
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