查询词典 radius

Appling the method to multi-channel filter design, we find that the filter efficiency can improve about 50% when the dielectric rod radius is proportion with ransonant cavity dielectric rod radius.

将其应用到多信道滤波器的设计中，发现当其半径与相应缺陷介质柱半径的大小成正比时，各信道的耦合效率均能提高50%左右。

We are all too familiar with tanned hefty young instructors trying to carve a 17 meter radius turn around a tree, riding a ski edge that is cut for a 12 meter radius. Since the edge cut restricts the turn to a 12 meter track, they usually hit the tree, unless they sideslip out of their carving rail.

众所周知，当健壮的年轻教练们要用12米半径的刻滑板绕一棵树刻滑出17米半径的轨迹时，由于板刃限制的刻滑半径为12米，通常他们会撞树，除非轨迹侧滑。

The primary object of a transition curve is to avoid a sudden change from a tangent with infinite radius to a curve of finite radius.

6设置缓和曲线的主要目的是避免线性由半径为无穷大的直线突然变化到半径为一定的圆曲线。

The focusing beam radius' ratio between the telescope lens compound system and the single lens increases via length (70~400mm) increasing, and the maximum ratio is 30, meanwhile the ratio between the telescope-lens compound system and the single lens decreases via length (70-400 mm) shorting, but the maximum difference of the focusing beam radius' is 0.043μm.

结果表明，随着距离(70~400mm)的增加，两者的聚焦效果相差增大，最大为30倍；随着距离(70~400mm)的减小，两者的聚焦效果相差减小；经望远镜和薄聚焦透镜组合系统聚焦的高斯光束束腰处光斑半径随距离(70~400mm)变化的最大值为0.043μm。

The radius of the combined curve is 1000m on the theoretical switch point and 538.2497m on the actual switch point, the radius of the circle curve is 365.9m, the actual planing length of switch rail is 6.8m.

该组合曲线尖轨理论尖端位置的曲线半径为1000m，尖轨实际尖端位置的曲线半径为538.2497m，圆曲线区段的曲线半径为365.9m，尖轨实际刨切长度为6.8m。

Search Radius: The search radius, in pixels, used by the software when it tries to find the stars listed in the reference star catalogue in the image.

搜索半径：以像素为单位的搜索半径。

The police searched all the fields and woods within a six-mile radius /within a radius of six miles.

警方搜索了在周围六英里以内所有的田野和树林。

Police searched all the woods within a six-mile radius/within a radius of six miles.

警方搜索了在周围六英里以内的树林各处。

The formation mechanism of the absolute instability and gyrotron backward wave oscillations is analyzed, and the methods to suppress the parasitical modes are discussed.The nonlinear theory model of gyro-TWT is consummated by considering the influence of tapered magnetic field and waveguide radius, electron velocity spread, and waveguide loss on electron beam-wave interaction. The large-signal characteristic of gyro-TWT, such as launching loss and absolute instability, are also analyzed in detail. This work establishes the foundation for the development of a gyro-TWT amplifier.

重点研究了两段损耗波导结构和损耗陶瓷结构回旋行波管中的电子注-波互作用，分析了绝对不稳定性和回旋返波振荡的形成机制和抑制寄生模式的方法；完善了回旋行波管的非线性理论模型，并考虑了磁场和波导半径渐变、速度零散、波导损耗等因素对注-波互作用的影响；详细分析了发射损耗、相位稳定性等回旋行波管的大信号特征，为回旋行波管放大器的研制奠定了基础。

Bone mineral content and bone width at the one-third part of distal radius at non-superiority side were assessed by single-photon absorptiometer, height and body mass were measured at the same time.

调查于2001-10/2002-11在重庆市3所学校（小学、中学和大学各1所）完成，3所学校以班级为抽样单位，选择健康儿童、青少年161名作为调查对象，均在调查前填写知情同意书。

No, it's unnecessary. I don't think I have a fever.

不，没有必要，我想我没有发烧。

We live in a culture of instant gratification.

我们生活在即时满足的文化中。