Natural rubber (polyisoprene) from the rubber tree Hevea brasiliensis is synthesized by specialized cells called laticifers. It is not clear how rubber particles arise, although one hypothesis is that ...
Renato Cordeiro, 57, harvests rubber from a hevea tree (Hevea brasiliensis) near his home - Copyright AFP Pablo PORCIUNCULA Renato Cordeiro, 57, harvests rubber from ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果