| 释义 |
Eucomrnia ulmoides rubber
基本例句
杜仲胶
A Study on Extraction and Detection of Gutta in Tissue Culture of Eucommia ulmoides Oliv.杜仲组织培养中杜仲胶的提取与检测研究。
In the late 1950s, the rubber ball was invented through constant research and improvement.It was actually made of gutta-percha, which resembled rubber.到了十九世纪五十年代末，经过研究和改良，发明了橡胶球，这种球实际是用杜仲胶制作而成的，杜仲胶类似于橡胶。 |