常见例句Model YQ Compressive Pneumatic Springs Seai the hogh-compressed air in the cyinder and produce eiasic force on a piston. YQ型压缩气弹簧是一种将高压气体密封于缸筒内，通过活塞产生弹性功能的产口。Seai 塞亚伊Herba seai sarmentosi 垂盆草 返回 Seay