垂直螺旋度的演变对本次西南涡暴雨有较好预报指示意义。
The evolution of vertical helicity has a better forecast instruction significance to the southwest vortex rainstorm.
沙尘暴区上空垂直螺旋度的垂直分布为中高层负值,低层正值。
The distribution of helicity over the sandstorm area was negative at higher levels and positive at lower levels.
主营产品有:螺旋输送机,垂直螺旋输送机,可弯曲螺旋输送机,双螺旋输送机。
Main products are: screw conveyor, vertical screw conveyor, flexible screw conveyor, two-screw conveyor.
报导了在西安交通大学高压汽水实验回路上进行的垂直螺旋管内汽水两相流传热试验研究。
Extensive experiments of steam-water two-phase flow and boiling heat transfer in a vertical helically-coiled tube were carried out in high pressure water test loop of Xi an JiaotongUniversity.
在垂直螺旋度的基础上,定义了散度通量,水汽垂直螺旋度和水汽散度通量三个宏观物理量。
On the basis of vertical helicity, we define three parameters, namely, the divergence flux, moisture vertical helicity and moisture divergence flux.
由于垂直螺旋卸船机的卸船时间短,所以受潮汐的影响少,航期费少,有利于船舶运费的降低。
Because the unloading time of vertical screw shipunloader is short, it will have less impact from tide and lower cost of shipping.
当垂直刀架下降时,由于摩擦力阻碍其下降,使丝杆的上螺旋面螺母的下螺旋面相接触,丝杆螺母的间隙在下面。
When the vertical turret decline, due to friction hinder its decline, the screw on helical screw nut under the physiognomy contact screw nut in the space below.
不同的层以螺旋式上升,因此地铁站起了将街道垂直化的复合体的作用。
Multiple levels continue in spiral, so the station functions as a complex that brings in streets in vertical layers.
螺旋楼梯不仅是重新连接各层功能的新的垂直交通体系,也作为陈列馆的展示流线。这条“天路”寓意着云端漫步,也是云南公路人不断向上进取的象征。
Spiral staircase is not only a new vertical transportation system connected to the function of each layer, Also as a gallery show streamline.
摆锤W装在一根杆上,在轴a周围垂直移动,它由螺旋弹簧f所悬挂。
W is attached to a bar, movable vertically around an axis a and suspended by the helical spring F.
螺旋度分析表明,在不均匀的强上升气流的作用下,涡旋的水平分量向垂直分量转化是此次强降水的可能机制之一。
The analysis of helicity also revealed that under the updraft, the conversion from the horizontal whirlpool into the vertical whirlpool is one of the possible mechanisms of the event.
本文首先探讨了由多普勒天气雷达提供的垂直风廓线产品(VWP)计算风暴相对螺旋度(SRH)的方法和步骤。
A method and steps of calculating storm relative helicity (SRH) according to the Doppler radar vertical wind profile (VWP) products are discussed firstly in this paper.
本文用垂直同轴圆柱环形空间内的螺旋流流场作为钻井井内流体流场的理想化模型,得出了任意纯粘性流体螺旋流流场的速度及排量表达式。
The expressions of velocity and flow rate of helical flow of a general viscous fluid has been obtained by using helical flow in a vertical annular space as an idealized flow model.
轴向垂直滑动方向的纤维呈螺旋状断裂形貌。
The fiber with the axis perpendicular to the sliding direction has the helical crack morphology.
使用垂直而非水平轮廓的一建,虽然每个是相同的几何,它可以产生,一个被利用垂直径向弧线取得,一个是在连续的螺旋形做,“哈姆斯说。”
One was built using vertical as opposed to horizontal contours, one was made using vertical radial arcs, and one was done in a continuous spiral, "Harms says."
本发明涉及一种输送机领域的用于工件垂直向下输送的螺旋滑槽输送 机。
The invention relates to a spiral chute conveyor used for vertically-downwards conveying work elements, belonging to the conveyor field.
项目正在开发一种电动能,能够使飞机垂直起降。飞机在它的前部和尾部都装有多个螺旋桨。
Project Vahana is developing an electric-powered, vertical-takeoff-and-landing aircraft with multiple propellers mounted on fore and aft tilting wings.
另一种是近似圆锥体的母线是向锥体外凸出的曲线。螺旋叶片垂直于锥体表面。
Said spiral blade has a spiral curve extended from the tip of conic body.
数字显示,垂直bodycut一类的“G ”螺旋桨whith曲柄类型的运动学。
Thee figure shows a vertical bodycut of a type "G" propeller whithcrank type kinematics.
数字显示,垂直bodycut一类的“G ”螺旋桨whith曲柄类型的运动学。
Thee figure shows a vertical bodycut of a type "G" propeller whithcrank type kinematics.
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