本文分析了成型铣刀刀刃曲线的几何性质，推导出它的数学方程，求取铣刀上圆盘刀片中心坐标，为成型铣刀的计算机辅助设计奠定了理论基础。
This paper analyses the geometrical character of curve of edge of form milling cutter, and infers the mathematical equations of curve, The center coordinates of conical button-shaped are evaluated.
当第一次用望远镜观测到火星时，人们从飞机上看到，火星的圆形圆盘在地球上纵横交错。
When the planet Mars was first observed through a telescope, people saw that the round disk of the planet was criss-crossed on earth that are viewed from an airplane.
当第一次用望远镜观测到火星时，人们从飞机上看到，火星的圆盘在地球上纵横交错。
When the planet Mars was first observed through a telescope, people saw that the round disk of the planet was crisscrossed on earth that are viewed from an airplane.
当把磁场聚焦在大脑的的视觉皮质上时，会促使受试者看见明亮的圆盘和线条。
Focusing magnetic fields on the visual cortex of the brain caused the subjects to see luminous discs and lines.
在这项实验中，当黑色的圆盘出现时，石鳖立即贴覆在石板上，但当荧屏变暗时，它们则保持在生活状态。
In the experiment, the chitons went into lockdown mode when shown the black disk, but the animals remained at ease when the screen dimmed.
这就会变成…，如果俯视这个抛物面，所看到的就是单位圆盘，这就应该是单位圆上的二重积分了。
That is just going to be, if you look at this paraboloid from above, all you will see is the unit disk so it will be a double integral of the unit disk.
在突出了日全食特点已知最早的8字曲线照片中，有一个太阳圆盘像天体项链上的垂饰似的闪耀光芒。
One disk of the sun shines like a pendant on a celestial necklace in the first known analemma photo to feature a total solar eclipse.
不是变量，这是在一个圆上。，R，is，not，a，variable。，You，are，on，the，circle。,这个是二重积分，如果你们这么做的话，在圆盘上，如果你们用极坐标的话,就需要用到R和θ
R This one is a double integral. So, if you are doing it, say, on a disk, you would have both R and theta if you're using polar coordinates.
大部分来说计算机，这一个地方是硬盘磁碟机，但是文件能在所有的媒体上存在：闪现驾驶、激光唱碟和数字化视频光圆盘，否则甚至以带子绑起预备的系统。
For most computers, this place is the hard disk drive, but files can exist on all sorts of media: flash drives, CD and DVD discs, or even tape backup systems.
机身上的圆盘形整流天线能接收地面传输的微波能，将其转化为直流电为飞机推进器上的电动机供能。
A large disc-shaped rectifying antenna attached to the fuselage harvested the microwave energy, turning it into direct current to power an electric motor attached to the plane's propeller.
由于透视法的缘故，在地球上我们观察到的银河系圆盘的边缘是一道明亮光带，在这幅图像中这道光带从中部一直延伸到下方的地平线。
The disk of the Milky Way galaxy, seen edge-on from Earth's perspective, is the bright band running horizontally down the middle.
一种快开式阀门，其孔口的开启和关闭靠装在阀门颈部枢轴上的圆盘。
A type of quick-opening valve whose orifice is opened and closed by a disk that pivots on a shaft in the throat of the valve.
实际上，涡轮圆盘和喷嘴是装在机壳里的。
In practice, the turbine disc and the nozzles are fitted into a casing.
海伦：如果你找一下，就会在摊位的地板上找到一个小金属圆盘。
Helen: If you check, you'll find a small metal plate on the floor inside your booth.
绝对不可把手靠近机器设备的旋转部件上，需要把木材推向圆盘锯时，必须使用推杆。
Never place your hands near a machine with rotating parts. Make use of push stick when pushing a timer across a circular blade.
在旋转圆盘仪上对五种钢的气蚀破坏规律进行了研究。
The cavitation erosion regularity of five steels of different heat treatments was studied using rotating disc testing equipment.
滑动磨损试验是在“柱-盘”试验机上进行的，其固定的圆柱为52100钢，在旋转的圆盘试样上滑动。
The sliding wear tests were conducted on the "cylinder-on-disc" machine with the stationary cylinder of steel 52100 sliding against the rotating disc specimens.
因此大体上，增大圆盘片和轨道运动的观察只指示有某个质量紧凑的物体，而且有关那个物体的性质说得非常少。
Hence, for the most part, observations of accretion disks and orbital motions merely indicate that there is a compact object of a certain mass, and says very little about the nature of that object.
圆盘外有透明的防护罩，以免偶然在圆盘上弄上污点或线迹。
A transparent cover is provided to protect the disc against accidental marking or smudging.
因此，由于衍射存在，我们很难把入射光线集中在一点上，衍射使最终形成一个圆盘或者在外圈形成一个圆环。
Therefore, instead of incoming light being focused to a perfect geometric point, the diffraction effect spreads the light into a disc with rings surrounding it.
整个装置由真空保温层、磁流体密封器、圆盘状盖封闭，支承于机座上。
The whole apparatus is enclosed by vacuum insulation layer, magnetic fluid sealer and disc cover and supported on the machine base.
磁盘是一种带有可磁化层的扁平圆盘，在其表层上可用磁记录方式存储数据。
Magnetic disk is a flat circular plate with a magnetizable surface layer on which data can be stored by magnetic recording.
叶轮是1个圆盘，圆周上的叶片呈放射状匀称摆列。
Impeller is a disc, on the circumference of the blade evenly with.
可以解决因分卷停机在卷取机与张力活套间等切换张 力时带钢在圆盘剪上产生的缺陷。
The process can overcome the defects generated on the disc shear by the strips when the tension is shifted between the coiler and the tensioning piston owning to the shutdown of the coil separating.
主转轴上可同时固定多个带自转轴的圆盘。
The main rotary shaft can be simultaneously fixed with a plurality of circular discs with self rotation shafts.
但新的观测提出，它实际上可能是由两个机构组成气态圆盘几乎相互垂直于对方。
But new observations suggest it may actually be composed of two gaseous disks nearly perpendicular to each other.
但新的观测提出，它实际上可能是由两个机构组成气态圆盘几乎相互垂直于对方。
But new observations suggest it may actually be composed of two gaseous disks nearly perpendicular to each other.
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