保持放松、直立的坐姿。Sit in a relaxed upright posture.马忽然用后腿直立起来,把我摔下马背.The horse suddenly reared up and threw me off.种马用后腿直立起来.The stallion upreared on its hind legs....
法兰内孔管件内孔必须倒角焊接.Flange hole inside the tube must be chamfered hole welding.适用于各种光饰机的快速切削, 去毛刺和倒角.FC : Made for fast cutting, deburring, radiusing in all types of finishing equipment.表1---除倒角外,所有线性尺寸的公差标准.Table 1 – Accepte...