The improved device consists of J2135 collision experiment device, drawing table and soleplate, and also adds a mobile board and a L-type positioning device.
改进的装置由J2135型碰撞实验器、绘图板和底板组成，并增加了活动托板和“L”型定位器等装置。
The improved device consists of J2135 collision experiment device, drawing table and soleplate, and also adds a mobile board and a L-type positioning device.
改进的装置由J2135型碰撞实验器、绘图板和底板组成，并增加了活动托板和“L”型定位器等装置。
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