该组合式机械三通密封的特殊设计使之能配合开孔机开出与管道内径相等的孔；
The special design of the tee branch is appropriate for drilling holes equal to the inner pipeline . diameters.
发动机机匣上安装凸台结构，可简化为机匣壳体开孔后用围壁和加强板组合补强的力学模型。
On engine cases, installation base can be simplified by a mechanics model, which is case shell with hole and a complex of enclosing wall and reinforcing plate for increase strength.
属于农业机械的花生玉米点播机，在开有五个型孔的滚轮上分别安有五个带有活舌的管式开穴铲和型孔盒。
The utility model relates to a wheeled peanut and corn seeding machine, which belongs to the peanut and corn dibbling machine of the agricultural machine.
属于农业机械的花生玉米点播机，在开有五个型孔的滚轮上分别安有五个带有活舌的管式开穴铲和型孔盒。
The utility model relates to a wheeled peanut and corn seeding machine, which belongs to the peanut and corn dibbling machine of the agricultural machine.
应用推荐