准的

Methods Collect 20 cases history of anklebone fracture scaned by X?ray,normal CT scan and quasi coronary CT scan.n,compare the result of exam result.Estimate the application of quasi coronary scan in anklebone fracture in X?

收集踝关节骨折病例20例，均行X线、CT常规横轴位扫描及准冠状位扫描检查，比较三者的检查结果，评价CT准冠状位扫描技术在踝关节骨折检查中的作用。

The precision of photoelectric Autocollimator in our country is low, so the research of how to improve its precision is necessary.

国内光电自准直仪的精度较低，提高光电自准直仪精度的研究势在必行。

In order to make up for the deficiency that photoelectric autocollimator does not have high resolution and large measuring range at present, an auto-collimation angular measurement method based on imaging grating is presented.

针对目前光电自准直仪难以做到既有高分辨力同时又有大的测量范围的不足，提出一种成像式光栅自准直测角方法。

Experimental results show that the proposed method is fast, stable and accurate, and the measuring accuracy of the modified CCD laser autocollimator is improved from 2 arcsec to ±0.25 arcsec in 0.23 s using the proposed method.

实验结果表明，该定位方法稳定性好，定位精度高且实时性强，应用该方法改进后激光CCD自准直仪的测量精度由2"提高到±0.25"，且单次测量时间小于0.23 s，可满足激光CCD自准直仪在小角度测量和瞄准跟踪等领域的高精度实时测量需求。

Stabilizing agricultural product prices is one of the important food policies in most developed and developing countries. In general, the government provides several stabilizing policies to stabilize agricultural prices, including buffer stock scheme and stabilization fund scheme.

维持农产品价格的稳定是许多国家重要的政策之一，政府为能平抑国内农产品价格，往往制定不少稳定价格政策，包括平准实物制度、平准基金制度…等。

Because the registration and fusion are the key techniques in image fusion, we improve the Chamfer Matching method and raise a fusing method based on fuzzy mathematics.

由于配准和融合是多模医学图像融合的关键技术。作者分别改进了CHAMFER MATCHING配准方法和提出了以模糊数学为理论基础的融合方法。

The non-spherical lens is another shaping system that is used to collimate the beam of LD, and the theoretic performance could be perfect.

非球面柱透镜是另一类特殊结构的柱透镜，在用于半导体激光束准直时，理论上可以达到完全准直的效果。

Among this technique, we use a simple, economical and practical collimation method-single lens collimation method to collimate semiconductor laser beam, and use moving objective scanning method to make laser point scan on the lofting plane.

其中用单透镜准直法对有大发散角的半导体激光光束成功地实现了准直，既简单又经济实用；用平移物镜法实现了激光点的扫描。

The model of this collimator set on the ray trace theory. The designing and optimization way are created.

通过该方法设计的准直系统，在实际应用中达到了与传统非球面柱面镜相同的准直效果。

The additional coupling loss is calculated, and the formulae of return loss of C-Lens collimator are given.

本文计算了C-Lens准直器的附加耦合损耗以及给出了准直器回波损耗的计算公式。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐