半径的

Formulas are given in many mechanical manuals to calculate the tooth thickness at only the reference circle of worm and worm wheel.

蜗轮蜗杆的分度圆齿厚在大部分机械手册中都给出了计算公式，但在其它任意半径处的齿厚计算很少有资料涉及。

While pure acicular ZnO nanoparticles are acquired in the oxygen, and Zn nanoparticles are obtained in the hydrogen.

通过对临界粒子半径r*的回归分析，说明Zn纳米粒子的粒径主要由反应压力控制，而与载气流量关系不大。

The results showed that the resin AB-8 is the best in character of enrichment and purification of total terpenoid components from Alisma Orientalis. The optimal parameters were radius: height 1:10, the ratio of condensing 1:1, the speed of loading and eluting 10ml/min, the amount ratio of raw herb and resin 4.6:1, 70% alcohol as the elution solvent, the elution volume 4BV.

结果：以AB-8型树脂的富集纯化性能最佳，最优组合：半径、柱高比为1：10；药液浓缩比为1：1；药液上样与洗脱速度为10ml/min；药材与树脂的用量比为4.6：1；洗脱溶媒为70%乙醇；洗脱液量为4倍床体积。

Sythesizing thevalence electron number, electronegativity and atomatic radius of the alloying element, thecharacteristic value may be fixed at 4.223 in Ti alloy, and which may be expressed as4.223=∑N_if_i+0.310△x / x_+0.551 △r / r_Ti

综合合金元素的价电子数、化学负电性和原子半径三个因素，钛合金中ω相形成的特征值可定为4.223，其表达式为 4.223=∑Nf_i+0.310Δx/x_+0.551Δr/r_Ti

The Caloris Basin is a notable landmark, a giant crater having a 650 km radius and is similar to the lunar basins.

该Caloris盆地是一个重要里程碑，一个巨大的陨石坑有一个650公里的半径，它类似于月球盆地。

In precision controlling, the closed loop negative feed back technology is used, and the circumrotation corner velocity ω of water pump is adjusted by examining the range of spraying irrigation , and the hydraulic pressure is adjusted, then accurate jet radii r is obtained finally.

为了实现喷灌精度的控制，采用了负反馈闭环控制技术，通过对喷射距离L检测来调节水泵转速ω以改变水压Pi最终获得较精确的喷射半径ri或喷灌域。

The whole machine performance curve of air blower made in accordance with controllable eddy ternary current rotator technology is complanate,its surging outflow is little, and it can ensure the design calculation astringentyunder the condition of wider blade or small curvature radius.

按照可控涡三元流转子技术制造的鼓风机的整机特性曲线平坦，喘振流量小，可确保宽叶片或小曲率半径条件下设计计算收敛。

Aiming at precision measurement of cylindricity,this paper puts forward a kind of method which can sep- arate the cross- section roundness error,the radius error of different cross sections,the initial coordinates of least square centers of measured cross sections and can reconstruct the pattern of the measured cylinder,i.

本文针对圆柱度误差的精密测量，提出了一种可分离截面圆度误差、截面半径差和截面最小二乘圆心初始位置并重构出被测圆柱形貌的方法，即三点法圆柱度误差分离与重构技术。

Both of them are designed according to the principle of Benkelman beam deflectometer.

这两个方案的路面曲率半径仪都是以路面弯沉仪为基础的。

SMn, TC4(Ti-6Al-4V ) at high temperatures, the stress-strain curves and stress relaxation curves are automatically recorded by the X-Y function recorder with the help of laser scanning deformeter.

本文提出用对数方程作为应力应变关系及高温短时应力松弛的数学模型，进而求得了板料在热校形中的塑性纯弯曲回弹角度及回弹半径公式。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。