Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/be9e01e24aade5e2a636e425abca5db0.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 gutta percha例句_gutta percha英汉例句_gutta percha双解例句_沉淀汉英词典
It points out that the birth of Gutta-Percha rubber with high elasticity is a sign that the research-development of Gutta-Percha has entered into a new stage. 指出，杜仲胶高弹性体的出现，是其研究开发进入新阶段的标志。