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The focal properties of varifocal Fresnel lens was studied in experimental, experimental results showed that the deformation of surface of LCoS will lead to diffusion of the focal of Fresnel lens, one correction method was mentioned.

然后利用已经制作的LCoS相位空间光调制器，实现了可编程的变焦菲涅尔透镜，通过实验研究了变焦菲涅尔透镜的聚焦特性，发现LCoS器件的表面弯曲会导致聚焦焦点的弥散并设计了校正的方案。

The experimental tubings were PVC plastic tubings. The diameter of experimental PVC tubings is 40 mm, the wall thickness is 2.4 mm and the maximal bursting pressure is 12.5 bar. There were four PVC tubings. Each has a single hole with diameter of 0.9mm、 1.1mm、 1.3mm and 1.5mm.

以直径为40mm，壁厚为2.4mm，最大爆破压力为12.5bar的PVC管为实验材料，首先研究了在0.9bar、1.2bar、1.5bar、1.8bar、2.1bar这5种工作压力下喷孔孔径分别为0.9mm、1.1mm、1.3mm、1.5mm的单孔流量及近似射程，根据实验结果最终选择近似射程最远，喷孔孔径为1.3mm的微喷灌管作为单孔喷水量分布特性研究。

The main work of this paper is to develop a vision-based virtual-real registration experimental augmented reality system.According to the registration algorithm,considering the condition of our lab,a set of calibration and experimental templets are designed,and a series of registration experiments are carried out to calibrate and test the system.

本论文在增强现实技术的基础上，开发了一套基于视觉的增强现实虚实配准的试验系统，针对算法的需要和实验环境，设计了一系列简单实用的实验，制作了摄像机定标所需的标定模板和一些简单实用的测试模板，并对虚实配准系统进行了标定和测试实验，同时，编制了相应的应用软件。

And Finally according to theprogramed algorithms, simulation and experimental stitchings are porformed for testing thealgorithm accuracy. Results show that, the comprehensive errors of theretical andexperimental wavefront stitchings are less than 10~(-6)λand than PV/10 (where PV refering towavefront peak-to-vally value), respectively. Furthermore, experimental research isconducted on the influence of stitching accuracy by sub-aperture overlapping area andstitching modes, with subaperature real-time stitching test for large plano-optic broughtabout.

第三，对编写的算法程序进行了模拟拼接实验和实际拼接实验，测得该算法程序的精度为：理论拼接波面的综合误差小于10~(-6)λ，实际拼接波面的综合误差小于PV／10(PV为被测波面相位峰谷值)；在此基础上，又就子孔径重叠区域大小和拼接模式对拼接精度的影响进行了实验和分析，实现了大口径光学平面的子孔径实时拼接检测。

In order to fill up this blank, cooperating with Shanxi Agricultural machinery experimental evaluation station, we have made thorough experimental study on the performance evaluation indexes and m

本文研究内容是该项目中的一部分，文中依照评价指标确定的原则，结合生产实际，并通过试验和咨询专家，选出针对小麦免耕播种机的五个性

In experimental education process, add through revealing model of in kind of oral cavity stuff to reach with multimedia realia, encourage a student inchoate contact is clinical, begin what content abounds to read books and newspaper to accuse, be helpful for enhancing education figure sex, help student understands the clinical application of material, develop student learning activity, raise oral cavity material to learn experimental education result thereby.

在实验教学过程中，通过展示口腔材料实物模型及加用多媒体教具，鼓励学生早期接触临床，开展内容丰富的读书报告，有利于增强教学形象性，帮助学生理解材料的临床应用，发挥学生学习能动性，从而提高口腔材料学实验教学效果。

Thirty-six healthy white rabbits without any ocular disease and weighing 2.0 to 2.5 kg were used in this experiment.Twenty-one of them were divided equally at random into three experimental group,namely A、 B and C, numbering every white rabbit in respective experimental group.The corneal thickness of five white rabbits of remnant were measured and seven white rabbits of remnant were control group(the white rabbits without any ocular disease and taking lamellar keratoplasty under same breeding condition and same time),in addition three white rabbits were pre-emergency.

本实验选取体重在2.0-2.5kg左右并且无任何眼病的健康家兔36只作为实验动物，将其中21只随机均分为三个实验组，即A组、B组和C组，并且对各组家兔进行编号，再将余下15只中的5只用于角膜厚度的测量，7只作为对照组(即在相同饲养条件下及饲养期限内，无任何眼病并且未进行角膜移植的家兔)，3只备用。

Two experimental classes are divided into experimental teaching group and controlled teaching group, with their pre-examination, after-examination, and postponed spatial ability examination results of the two groups as quantified analysis, recording the process of teaching as data for teaching activity analysis.

本研究采「实验研究法」之「不等组准实验设计」，以研究者任教之学校为样本，丛集取样二个教学实验班级进行实验组与控制组教学，搜集二组学生在空间能力测验的前测、后测及延后测成绩做为量化分析之依据；记录教学历程做为分析教学活动内涵之资料。

By using the results from systemical petrography, X-ray powder diffraction, and EPMA analyses on the run products from experimental simulaion under constant temperature and pressure, we have explored the paragenesis for the pelites suffering metamorphic dehydration under high pressure condition, the process and mechanism for these metamorphic dehydration, and the relation between the components for garnets, one of the major phases in the paragenesis, and the experimental conditions including pressure, temperature, and chemical compositon in a system.

由恒温、恒压实验产物系统的岩相学、X射线粉晶衍射和电子探针分析，揭示了天然泥质岩发生高压变质脱水作用后的矿物相组合，确定了泥质岩高压变质脱水作用的过程和机理，以及主要矿物相石榴子石的组成与压力、温度和体系化学组成的关系。

Simultaneously an experimental study on filter efficiency and pressure drop under various structure dimensions and packing density is conducted and experimental results are compared and analyzed.

同时对其进行了在不同结构尺寸、充填密度下，捕捉器捕捉效率和过滤阻力的试验研究，并对试验结果进行了对比和分析。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！