打开App
360P
树枝上的“泡沫塑料”是啥东西？
城市绿化带中的灌木上，有时会附着着一种类似白色泡沫塑料的物质，它是雄性白蜡虫羽化前留下的蜡，可以用于提取虫蜡。（出品：科普中国-创作培育计划，转载请注明来源）
科普中国 星空计划113/251
App03:28
App03:27
App03:49
App02:59
App01:07
App03:10
App03:42
App06:13
App03:32
App00:56
App03:17
App03:26
App05:46
App05:21
App03:14
App03:34
App04:44
App05:55
App03:37
App03:06
App03:03
App04:18
App03:12
App05:07
App03:00
App06:20
App03:33
App05:38
App04:52
App03:39
App03:12打开App观看
