screw key [机] 螺丝扳手 ; 螺旋键 ; 压下螺丝的转动杆
socket screw key 凹头螺钉键 ; 六角凹头螺旋键
hex-socket screw key 六角凹头螺旋键
hexagon socket screw key 内六角螺丝扳手 ; 内六角扳手
universal screw-key 万能扳手
hex socket screw key 六角凹头螺钉键
spline socket screw key 内六花键螺钉扳手
key lifting Nude screw 键升降螺杆
The fast response and stable output of the torque are key techniques of electric screw press.
转矩的快速响应和稳定输出是电动螺旋压力机稳定运行的关键。
As the key component of extruder, the structure of screw rod has a great effect on the characters of puffed materials.
作为挤压膨化机关键部件的螺杆，其结构对膨化物料的性状有着十分重要的影响。
Generally, two screws are placed in the hub: one screw bears on the key and the other bears on the shaft.
一般在轮毂内装有两个螺钉，一个螺钉压在键上，另一个则压在轴上。
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