常见例句双语例句Aiming at the attachment process requirements of the U structural section's flash butt welder, the special gas-liquid drive gear and pressure clamp system were designed.针对U型钢专用闪光对焊机的连接工艺要求，设计了专用气液联控的传动机构和增压夹紧机构。 返回 butt clamp