陀螺

This text introduces the application of theodolite in the direction al measure technique in Qidong ventilation shaft.

简要介绍了陀螺经纬仪在定向测量中的应用和祁东风井联系测量技术。

A breakthrough was possible when Boyd found that when a dog moves , its head remains relatively still and so performs tike a gyro stabilised platform .

波伊德发现，当一只狗在运动时，它的头部相对稳定，与用陀螺仪固定的平台相仿，这时，突破就成为可能。

Jacobs from Canada it says that the top was first produced in Denmark and was later manufactured in Canada, being obtainable at any drug store or tobacconist for 25 cents.

Jacobs的文章里记载了神奇陀螺历史上首次生产出来是在丹麦，并在加拿大量生产。在烟草店里以25分钱销售。

That sort of behaviour is hardly top-drawer.

一种由鞭抽打才能旋转的陀螺。

And this causes a frequency change Δf. The resonant point tracing algorithm describes how to detect Δf. So it can introduce a feedback frequencydifference -Δf through a closed loop to realize the resonant state o In the digitaldetection scenario, using staircase wave to replace saw tooth wave, it can overcome a lot of shortcomings in the analog system. The character of the staircase wave affects the detection precision directly. This thesis analyzes a high precision scenario producing a staircase waveform in detail. It can reduce the number of the bits in D/A converter greatly. This thesis proposes another method to improve the detection precision in case that the A/D converter has comparatively little number of bits, while this method will not increase the cost of the system greatly.

在谐振式光纤陀螺中，环形谐振腔的旋转使得谐振腔的谐振频率发生了变化，从而产生了一个与旋转速度成正比的频率变化值△f，谐振点跟踪算法描述了如何检测出△f，从而可以通过闭环在系统中引入反馈频差-△f，实现光路的谐振状态；在数字闭环检测方案中，用阶梯波作为反馈信号来代替锯齿波，可以克服原来模拟系统中锯齿波的很多缺点，阶梯波的性能直接影响着系统的测量精度，本论文详细分析了一种高精度阶梯波生成方案，使得所需D／A的位数大大降低；本文还分析了A／D转换器对系统测量精度的影响，提出了一种A／D转换器位数较少的情况下提高系统测量精度的措施，同时又不会增加太多的系统成本。

Firsts it briefly describes the principle of gyroscope-free stapdown inertial navigation system, then a six-accelerometers configuration scheme in triangular prism shape is presented according to the characteristic of engineering appliance.

在简述无陀螺捷联惯导系统原理的基础上，针对某工程应用背景的特点，提出了一种六加速度计三棱柱安装方式，推导了它的其力学编排方程，并对提高载体角速度计算值精度的方法进行了分析。

The gyro flywheel in its trunnion mounting is on the right between the two toothed quadrants, and the chain and weight controls are in the centre.

陀螺飞轮在其耳的安装是正确的两国之间的齿象限，和链和体重控制是在该中心内。

OA new concept of ice cream was introduced, which is combined two kinds of color lollipop with turbinate ice cream.

介绍了一种由带哨棒的双色棒棒糖与陀螺纸杯冰淇淋结合而成的新概念冰淇淋。

A large amounts of imformation about the systerm's vibration characteristic are presented. Some dynamic behaviors caused by gyroscopic moment, oil while in bearing and unaligned shaft line are studied.

就动力学特征的某些异常表现，探寻了系统存在的某些不稳定因素，分别讨论了机组运行中轴系陀螺力矩效应、轴承油膜动力涡动、轴系不对中等的动力学行为。

Through profound study of coupling relationship between gyroscope scale factor and its input axis misalignment,an uncouple principle was proposed,a precise mathematic model was established,and a set of uncouple test equipment and experiment were designed;the methods for solving constraint nonlinear Least-Squares problems were applied...

通过研究陀螺标度因数与输入轴失准角之间的耦合关系，提出了解耦测试原理，建立了严格的数学模型，针对该原理设计了解耦测试设备和方法；应用有约束多元非线性最小二乘问题解法实现了解耦解算。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。