以下为句子列表：
英文: A microscopic fossil, as of a pollen grain or unicellular organism.
中文: 微体化石一种微小的化石，如花粉粒或单细胞有机体的化石
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英文: A procedure had been studied on cryopresrvation of Loquat (Eriobotrya japonica Lindl.) pollen by the method of dry freezing.
中文: 摘要采用花粉干冻法对枇杷花粉超低温保存进行了研究。
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英文: Abstract: According to researches on Jurassic Sporopollen features and physical characters of rocks in northwest area, it has been considered that the most obvious temperature-rise event, happened in the late stage of Middle Jurassic to the end of Late Ju
中文: 文摘:通过对西北地区侏罗纪孢粉学特征的研究，并结合岩石的物理属性，认为中侏罗世晚期到晚侏罗世末存在一次最为明显的升温事件，其主要原因是由于侏罗纪全球性气温升高所导致。
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英文: A Study on the Fine structure of Staminate Development in Rice (Oryza sativa L.) Ⅱ.The formation of pore and intine in the pollen grain
中文: 水稻(Oryza sativa L.)雄蕊发育的亚显微结构研究 Ⅱ、花粉粒萌发孔及内壁的形成
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英文: About weeks after pollination, the tip cells of nucellus broke and secreted liquid into ovular canal, which promoted pollen movement to the nucellus and played important role for pollen germination.
中文: 传粉后约 周 ,珠心顶端破裂 ,分泌物进入珠孔道 ,并与珠被分泌物共同作用于花粉 ,使花粉向珠心移动。
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