Descend vertically two (2) meters, hold for five (5) seconds.
垂直下降2公尺，保持静止停悬5秒钟。
Experimental study on the flow behavior and heat transfer of ceramic balls in a vertical descendant tube
垂直下降管内陶瓷球流动与传热的试验
Design and Experiment of Downward Vertical Tube for Heat Transfer of Particles
垂直下降管散体颗粒换热实验台设计与应用
up-and-down movement
垂直往复运动;垂直运动;升降运动;上下运动
Most emergence or submergence does not remain strictly vertical.
大多数的上升或下降运动并非全然垂直。
scaffold and hoist equipments
脚手架和垂直升降设备
Either proceed to Climb-Out or Land within the landing area circle.
接下来可以直接进行"垂直爬升"的程序或降落程序，降落时机体必须在圆形的降落区内。
The height or vertical dimension of a flag or of any square sail other than a course.
降下桁木横帆之外的横帆或旗的高度或垂直距离
A sudden drop from a relatively erect to a less erect position.
突然俯身低下从垂直方向上相对高的位置降到低的位置
During breeding for vertical resistance, horizontal resistance tends to decline because of negative selection pressure.
当培育垂直抗性时，由于负的选择压力，水平抗性趋于下降。
He fell sheer down 300 feet.
他垂直跌下了三百英尺。
turn from an upright or normal position.
从垂直或水平位置掉下。
Remove relay by lifting straight up.
垂直向上地拆下继电器。
a sudden drop from an upright position.
突然的从垂直位置落下。
Evolution and Development of World VTOL Power Plant
世界垂直起降动力装置的演进和展望
A Study on Vertical Lifting Mechanical Parking System;
垂直升降式机械立体停车系统的研究
Selection of the Proper Motor for the Vertical Elevator Parking Equipment
垂直升降式停车设备提升电机的选用
An airplane built to fly vertically as well as forward.
垂直升降飞机一种既可向前飞亦可垂直飞行的飞机