Even today, the mechanism used to raise and lower the top, along with body reinforcements, make them heavier, less capacious, less secure, and trickier to engineer than their fixed-roof counterparts.
The aspiration force company technology strength is tremendous, the optimization managing mechanism is nimble, own the senior engineer and supervisory engineering staff.
志力公司技术力量雄厚，管理机制优化灵活，拥有高级工程师和技术管理人员。
3
The engineer explained by the square the working mechanism of the machine.