1)semihard rubber,半硬橡胶2)semi ebonite,半硬橡胶3)semiebonite,半硬橡胶4)semi-ebonite,半硬橡胶5)semi-hard,半硬6)semi-hard magnet,半硬磁7)(semi) hard process,（半）硬过程8)polyether polyol,半硬泡9)semi-rigid PVC,半硬质PVC10)semi-rigid,board,半硬板
用法例句
The polyether polyol PTMG,polyester polyol PPG and 4,4 -diphenylmethane diisocyanate MDI as the main raw material,water foaming agent to do with the production of a new two-step method semi-rigid polyurethane.
