大叶杨
dà yè yánɡ
- 名Chinese white poplar
大叶杨-
结果表明：（1）大叶杨柱头表膜上存在ATP酶的定位沉淀，但ATP酶的活性随可授期的到来而活性增加；
The results show as follows : 1.Lead deposits which marked the ATPase activities were observed on the pellicle of stigmas .
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历来被用来土地分界的大叶杨，针叶树以及意大利白杨小树林为住宅提供一个全方位掩体，使其不受高速公路和刺骨山风的影响。
Groves of cottonwoods , conifers , and Lombardy poplars , long used by pioneers for demarcating property lines , offer the family compound shelter from the highway and from fierce mountain winds .