electric motor has highest engery transfer ratio...
所有跟帖:
• that's why nuclear sub is actually a gas turbine powered electri -LeChatDort- ♂ (0 bytes) () 12/29/2013 postreply 20:13:01
• 偷换概念了。 -5000bucks- ♂ (0 bytes) () 12/29/2013 postreply 20:19:21