With the use of a birefringence fiber loop filter, the wavelength spacing can be adjusted by changing the length of the used birefringence fiber, which makes the laser more flexible.

Compensation for Thermally Induced Birefringence with Birefringent Filter in Intracavity Frequency-doubling Solid-state Lasers

双折射滤光片消除激光热致双折射的研究

The Actual Linewidth of Laser with Birefringence Filter in Oscillator

腔内有双折射滤光片的激光实际线宽

Experimental Studies on Fine Simulation of Blood Flow in Cardiovascular Modeles(ⅰ)── The measuring principle and analysing method of the dynamic flow birefringence

心血管内流场的高质量模拟实验研究（Ⅰ）&动态流体双折射测试原理与分析方法

A Study of the Pulsatile Flow Field around Artificial Heart Valves Model by Flow Birefringence Technique

用流体双折射方法研究人工心脏瓣膜的脉动流场

Calculation for the Two dimension Flow Field around Mitral Valves by Flow Birefringence Technique

应用流体双折射方法计算二维二尖瓣模型的流场

A Review on flow Birefringence Method And Application

流体双折射方法及其应用

Flow Birefringence Method and It's Application in Flow Measurement

液体双折射方法及其在流场测量中的应用

Study shear stress distribution of the blood fields in arterial branch models using flow birefringence method

用流动双折射法研究动脉分叉处血液流场的剪应力分布

The Study of the Stress Birefringence in the Optical-Disk Substrate

光盘盘基应力双折射的研究

Effect of Stress Birefringence on Characteristics of FBG Pressure Sensing

应力双折射对FBG传感器压力传感特性的影响

Thermal effects of laser medium have a serious effect on laser beam quality, slab laser medium can reduce the thermal focusing and stress birefringence effect by the light going through temperature gradient direction with a Zig-Zag optical path periodically.

激光介质的热效应对激光的光束质量有着严重的影响，板条激光介质可以利用Zig-Zag光路周期性穿越温度梯度方向以减小热聚焦及应力双折射效应。

Utilizing stress birefringence in fiber, a developed self adapt polarization controller at 1.55 μ m is represented. The controller is enable to provide the functions of automatic search, tracking and fine control for the output polarization state from the fiber.

报导了利用光纤应力双折射效应研制的1.55μm波长的自适应偏振控制器，该控制器具有自动搜索、跟踪和精确控制光纤输出偏振态的功能。

The mechanical property and form birefringence of hard elastic PP fiber on stretching in the media

介质中拉伸时聚丙烯硬弹性纤维的力学性质和形式双折射

Insensitivity to Polarization of Null Coupler Acoustooptic Switch by Using Form Birefringence From zero Hero

用形状双折射实现零耦合器声光开关偏振不敏感

Asymmetric waist cross section couplers are analyzed theoretically. Experimental results show that form birefringence of a coupler with an asymmetric waist cross section changes from positive to negative at a given degree of fiber fusion resulting in polarization insensitive operation.

对光纤型非对称束腰横截面耦合器进行了理论分析，并在实验上证明了耦合器的形状双折射随光纤的熔融程度从正到负的变化，最终可以达到偏振不敏感的目的。

The chicken replied, "Don't give it another thought. That's the mighty eagle, the king of all birds-you could never be like him!" And the eagle didn't give it another thought.

山鸡回答说：“不要想了，那是凶猛无比的鹰，鸟中之王——你不可能像他一样！”于是鹰放弃了那个念头。

Once there was an eagle, king of the birds, who often flew over the valley to seek for food.

从前有一只老鹰，他是鸟中之王，常常在山谷上方飞翔找食物。

I'm king of the birds! And I'm king of the bees!

我是小鸟的国王！我是蜜蜂的国王！

The owl cried," You are the king of birds, but you don't know that no mother would not consider their children the most beautiful in the world!"

母猫头鹰哭着说，“你是鸟类之王，但是你不知道没有一个母亲不认为自己的孩子是世界上最美丽的！”

The summer birds, resident birds, travel birds and winter birds are respectively 23, 21, 11, 2. The species of Palaearctic realm, widespread and Oriental realm are respectively 29, 22, 6.

夏候鸟、留鸟、旅鸟、冬候鸟分别为23、21、11、2种；古北界、广布种、东洋界鸟类分别为29、22、6种。