螺旋槽

Using spiral groove on the surface to enhance the heat transfer in the gravity heat pipe was proposed.

为了提高重力热管的传热能力，用螺旋槽表面结构来强化重力热管传热，并以水为工质进行了传热特性实验研究。

The investigation results can be applied to heat exchanger design and optimization of geometrical parameters of spirally corrugated tubes.

研究结果可用于换热器设计及优化螺旋槽管几何参数。

Abstractly, using ANSYS software simulates roll-pressing course of spirally grooved tube by three-dimension numerical simulation and experimental research.

在理论上，应用有限元软件ANSYS对螺旋槽管的滚压过程，进行了三维数值模拟研究及试验研究。

The ridge－loaded helical traveling wave tube is a new kind of high power millimeter wave device. The "hot" dispersion equation of this circuit loaded with an electronic beam is presented in this paper, and the Downhill method is used to solve the transcendental equation.

脊加载螺旋槽行波管是一类新型毫米波大功率器件，给出了此结构中引入电子注后的"热"色散方程，并利用"牛顿"下山法求解了此复系数超越方程。

Twist drill flute is an important part of the drill bit.

麻花钻螺旋槽是钻头的重要组成部分。

Through the comparison of the five means which can machine the twist drill flute,we have gotten that the highest precise method is grinding.

文中通过分析五种加工麻花钻螺旋槽的方法，得出了加工精度最高的是磨制法。

The spiral groove, it turns out, is actually composed of tiny hieroglyphics that tell the incredible story of spaceships from some distant world that crash-landed in the mountains.

事实上这个螺旋槽刻着很小的象形文字，告诉我们关于从遥远星球来的宇宙飞船撞上这座山的神奇故事。

Those with helical flutes provide smooth shear cutting are less subject to chatter, and produce a better finish.

那些带有提供光滑的剪切式切断的螺旋槽的铰刀很少受到振动，因此产生较好的光洁度。

This text design one available in grindings the cylinder spiral slot the X and Y direction advance to the organization , has carried on detailed mechanical design and transmission system design to the organization to X and Y advance .

本文设计了一台可用于磨削圆柱体螺旋槽面的数控机床的 X 、 Y 向进给机构，对 X 、 Y 向进给机构进行了详尽的机械设计、传动系统设计。

This text design one available in grindings the cylinder spiral slot the Z direction advance to the organization has carried on detailed mechanical design and transmission system design to the organization to Z advance.

本文设计了一台可用于磨削圆柱体螺旋槽面的数控机床的 Z 向进给机构，对 Z 向进给机构进行了详尽的机械设计、传动系统设计。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。