But it was a birdlike tail that really amped up the aerodynamics, dampening the drag from the body and wings, as well as boosting the lift that lags under vehicle weight and cargo load.
In modern times we used to lift the cargo is a wooden ladder, very convenient to use, climbing is dangerous.
在近代我们用来升降货物的是一种木质梯子,用起来很不方便,攀登时比较危险。
3
This paper introduce the application of PLC control system for lift , and describe the method and the process to control automatic cargolift which are available for reference.