分析结果表明，各测站的潮流性质均不相同，但都呈往复流运动形式。
The results show that the movement of tidal currents near each harbour are all of the rectilinear current type, while the tidal currents are different from each other in property.
实际观测资料表明，这一带潮流具有典型的往复流性质，并有较明显的不对称性和较大的垂直变化。
The actual data show that the tidal current is of typical alternating current with obvious asymmetry and large vertical variations.
介绍了旋转环形水槽的结构和工作原理，提出了削弱环形水流离心力的方法，通过环形水槽中周期往复流泥沙运动试验得出水体含沙量与床面剪切力和水体挟沙力之间的关系。
The method of weakening centrifugal force in the rotary ring flume is proposed and sediment movement under the effect of periodic reciprocating current is tested in the ring flume.
所有的空气动力都必须在缺乏任何迎流的情况下产生，意味着只可能通过翼的有动力作用的往复运动来产生提升。
All of the aerodynamic force must be produced in the absence of any incident flow, meaning lift can only be produced by the powered reciprocating motion of the wing.
目的为了合理地设计和优化混凝工艺，改善流场结构，提高混凝效果，并验证往复式隔板絮凝池的结构优化参数。
In this paper CFD technology is applied to numerically simulate the flow field of a reciprocating baffled flocculation tank to confirm the optimum configuration parameter.
由于往复隔板絮凝池廊道狭窄、絮凝池拐弯水流结构复杂，致使整个流场的量测十分困难。
Due to narrow gallery and complex hydraulic flow pattern on the corner in the reciprocating baffled flocculation tank, it is very difficult to measure its flow field.
往复柱塞泵转套式配流系统是一种结构紧凑、密封可靠的新型配流系统。
Rotating-sleeve distributing-flow system for reciprocating plunger pump is a compact, reliable sealing of the new distribution system.
使用Poly flow软件对熔融物料在往复螺杆式注塑机螺杆头部计量段中的三维等温流场进行了数值模拟。
Three-dimension isothermal flows in the metering section of reciprocating screw injection machines are simulated using the finite element package POLYFLOW.
使用Poly flow软件对熔融物料在往复螺杆式注塑机螺杆头部计量段中的三维等温流场进行了数值模拟。
Three-dimension isothermal flows in the metering section of reciprocating screw injection machines are simulated using the finite element package POLYFLOW.
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