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.
动力厅(Energy Hall)最引人注目的当属19世纪早期出现的第一台蒸汽机车。三楼展品最受儿童喜爱，其中有老式滑翔机，热气球，飞行模拟器等。
The Energy Hall highlights the first steam locomotives of the early 19th century; big with kids are the third floor exhibits, including old gliders, hot-air balloons and flight simulators.
目的：预防和纠正脑卒中患者关节挛缩、肢体僵直等偏瘫痉挛模式的出现，最大限度地提高脑卒中患者的治愈率，降低致残率。
Objective: to prevent and remedy symptoms of paralysis such as contracture of joints and stiff limbs, to increase the recovery rate of cerebral apoplexy and to decrease the rate of incapacitation.
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