橡胶形成的进化目的，以及橡胶之所以分别出现在橡胶树、银胶菊、蒲公英等各种各样的植物中的原因，在于它能黏住食草昆虫的口器。
The evolutionary purpose of rubber, and the reason why it has appeared independently in plants as diverse as trees, guayule and dandelions, is that it gums up the mouthparts of herbivorous insects.
除了在亚马逊平原搜寻橡胶树种和在南美建立试验性的种植园外，该项目还有一些新奇的生产橡胶的计划，包括在美国41个州种植蒲公英属植物。
In addition to searching the Amazon and establishing experimental plantations in Latin America, the program came up with some novel plans to produce rubber including planting Dandelions in 41 states.
另外，有种蒲公英所分泌的汁可以被用来做天然橡胶。
In addition, the milky juice of one kind of dandelion has been used to make a natural rubber.
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