1·Concrete mixing and unloading mainly depend on the two spiral mixing leaves, so the design of the helical mixing blades is particularly important.
混凝土的搅拌和卸载主要依靠两个螺旋搅拌叶片，因此螺旋搅拌叶片的设计尤为重要。
2·He points out that a similar spin-filtering of photons due to Bragg diffraction has been seen in cholesteric liquid crystals, which also have a helical structure.
他指出，由于布拉格衍射效应，在同样具有螺旋结构的胆甾相液晶中也观察到了类似的光子自旋滤波。
3·The Gorlov Helical Turbine, as it is known, allows you to use any stream, whatever the direction of its flow.
这个名为佐罗夫螺旋涡轮机的设备可以利用任何水流，不管流向如何。
4·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.
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。
5·Objective To explore the bowel and ordinary helical tube in critical patients in clinical application and nursing effect.
目的探讨螺旋型鼻肠管和普通胃管在危重症患者中的临床应用及护理效果。
1·For Francis turbines, the pressure pulsation in draft-tubes induced by helical vortex rope is one of the main problems and it would seriously affect the safe operation of the unit.
混流式水轮机尾水管内螺旋形涡带引起的压力脉动是造成混流式水轮机组振动的主要根源之一，严重威胁机组的安全运行。
2·It can reduce the length of the pulse forming line on the premise of forming the same output pulse width to adopt a helical structure.
采用螺旋形结构的脉冲形成线能在形成同样脉冲宽度的前提下大大缩短形成线的长度。
3·The ultraviolet copper ion laser with helical hollow cathode has been experimentally investigated. The discharge and laser gain and output characteristics were studied.
采用螺旋形空心阴极放电激励紫外铜离子激光器，实验研究了空心阴极放电，激光增益和激光输出功率特性。
4·A practical mechanism for the core-pulling of inside groove was presented. The core-pulling was achieved by applying the deformation of helical spring steel sheet during the ejecting process.
介绍了一种实用的内侧槽抽芯机构，可利用螺旋形弹簧钢板的顶出变形实现内侧抽芯，并阐述了抽芯机构的工作过程和关键技术。
1·As indicated in the section on simple machines, a screw ACTS with a wedging action and consists of a circular cylinder (or truncated cone) with a helical groove in it.
如在简单的机器上的区段所指出的，一个螺丝钉以一个楔住行动行事而且有圆形圆筒(或者切断了圆锥体)与一螺旋状的在它里面的凹槽。
2·There are commonly the helical structures in the celestial body from many gigantic whirl nebulae to small meteoric stone and dust falling to the Earth.
天体中， 从众多的硕大的旋涡状星云， 到坠落于地球上的微小的陨砂、陨尘， 普遍存在着螺旋状的结构形态。
3·By the experiment of high-speed milling aluminium alloy with carbide end milling cutter, the method of helical chip formation was researched.
通过硬质合金立铣刀高速加工铝合金的铣削试验，对螺旋状切屑的成形进行了研究。
4·The fiber with the axis perpendicular to the sliding direction has the helical crack morphology.
轴向垂直滑动方向的纤维呈螺旋状断裂形貌。
5·The first and second bends additionally cooperate to form a helical roller track on the outside of the tank.
此外，第一和第二弯曲协作以在桶的外侧形成螺旋状辊道。