guest Moderator 管理成员 注册 2002-10-07 消息 402,508 荣誉分数 76 声望点数 0 2018-07-30 #1 Rob Perrins and John Cooke have designed a complex mechanical system designed to snuff out Eurasian water milfoil — an invasive plant so difficult to kill it's been called the 'zombie plant.' 查看原文...
Rob Perrins and John Cooke have designed a complex mechanical system designed to snuff out Eurasian water milfoil — an invasive plant so difficult to kill it's been called the 'zombie plant.' 查看原文...
