Motion and force of the solid plug in the solid conveying zone were analyzed deeply in the two equivalent cases of the inner screw.
在固体输送段对内螺杆的两种等效情况下固体塞的运动和受力作了深入分析。
Will link directly into the screw plastic pin plug twist the hole, pin plug stress, and wall body firmly with inflation.
将螺钉连结工件直接拧入塑料销塞的孔内，销塞受力膨胀，与墙体牢固结合。
The utility model relates to a jack screw and plug screw driver, which is characterized in that a hole is drilled along an axial direction in a screw, and a plug is added on the head of a screwdriver.
一种插孔螺钉及插头螺丝刀。它是在螺钉上沿轴向钻了一个孔，在螺丝刀头部加了一个插头。
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