1.
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
2.
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
3.
up-and-down movement
垂直往复运动;垂直运动;升降运动;上下运动
4.
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。
5.
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。
6.
The tangs on the hose clamp must be positioned straight down.
必须将管夹中的尖柄垂直向下。
7.
On Vertical Administration System of the Procuratorial Organs below the Province Level;
省级以下检察机关垂直管理体制研究
8.
Vertical pipe shield and underwater pile-foundation protection frame for wellhead
垂直护管水下桩基式井口保护架结构
9.
scaffold and hoist equipments
脚手架和垂直升降设备
10.
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。
11.
Study on the Φ(θ) Coefficient of Added Resistance When Slurry Accerlerying in Vertical Pipeline;
垂直管道内沉降性浆体加速时附加阻力系数Φ（θ）的研究
12.
Experimental Study of the Two-phase Flow Pressure Drop Instability in Vertical Parallel Inner Threaded Tubes of a 600 MW Supercritical CFB(Circulating Fluidized Bed)
600MW超临界CFB垂直并联内螺纹管两相流压力降不稳定试验研究
13.
Study on Friction Pressure Drop Characteristics of Oil-Gas-Water Three-Phase Flow in Vertical Upward Pipeline
垂直上升管内油气水三相流动摩擦阻力压降特性的研究
14.
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
15.
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
16.
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。
17.
Sweep flame around tube in short strokes up and down at right angles to run of tube.
垂直环绕着管道上下来回短促扫着火焰。
18.
Research on Longitudinal Mechanical Characteristics of Pipelines Buried in Soft Soil under Vertical Loads;
垂直荷载作用下埋地管道的纵向力学性状分析