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The author analyzes an insurance database to evaluate the utilization of dental care preventive service and cost-benefit effectiveness of teeth fluoridation and anti-decay treatment program in central part of Taiwan.

全民健康保险自93年7月1日起实施儿童牙齿涂氟预防保健服务迄今已逾四年，本研究旨在探讨使用该项预防保健服务对健保牙医医疗利用之影响，并对涂氟支出之成本与减少之医疗费用进行成本效益分析（cost-benefit analysis，CBA）。

So it has made the great progress. The method studied in this research from o-Dichlorobenzene is a ideal route to synthesize 2,4- dichlorofluorobenzene, which has temperate condition easy to control,safe process,low cost and good quality of products; The method of Phase transfer catalysis fluorination without solvent is better than present technology in presence of DMSO as solvent in many aspects; In a word,it is worth being promoted by the domestic correlative factories.

本课题所研究的以邻二氯苯为原料的2，4-二氯氟苯合成路线反应条件温和，工艺容易控制，生产安全，而且产品质量好，是比较理想的合成路线；以季胺盐为催化剂的无溶剂相转移催化氟化法与溶剂法相比具有明显的优势；通过实验确定的工艺条件对工业化生产有重要的指导意义，可提高以邻二氯苯为原料的工艺路线的市场竞争力。

Results showed that the time-resolved fluorometer has many advantages such as sensitive, stable, easy to operate and low cost In conclusion, the time-resolved fluorometer we designed is an advanced and suitable clinical immunoassay set.

这说明我们研制的测试仪的灵敏度、线性范围、稳定性等各项技术指标都达到或接近了国外同类型产品的水平。相对于进口的同类产品，本测试仪制作成本较低。故本测试仪是一种性能先进、经济适用的临床免疫检验系统。

The advantages of direct stenting include shorter fluoroscopy time, less radiopaque dye used as well as better cost-ettectiveness.

直接置入支架的优点包括：缩短了曝光时间，减少造影剂的使用，降低费用。

The by-product sodium salt solution can be reacted with fluosilicic acid to produce sodium fluosilicate with lower cost and no three-wastes are produced in the process.

副产物钠盐溶液与氟硅酸反应还可用于制取氟硅酸钠，使氟硅酸钠的生产成本也较低，且无三废产生。

The results show that the cost of the highly effective modified AKD emulsion in neutral sizing is lower than that of the common AKD emulsion, the indices of the paper can reach A-grade standard of fluting base paper and the cur- ing time can be remarkably shortened.

结果表明：采用高效改性AKD乳液进行的中性施胶，施胶成本低于普通AKD乳液，成纸的各项指标均能达到A级瓦楞原纸的标准，而熟化时间能明显缩短。

In terms of cost and reliability, the indirect vector control system , which estimates the position of the rotor flux vector from the machine parameters, is widely used.

出于成本和可靠性的考虑，间接矢量控制系统，即基于转子磁链位置估计的矢量控制系统在实际中得到了广泛的应用。

This device is a basic platform well suited for cost effective designs of Quasi resonant switching flyback converters.

这个装置是一个基本的平台，良好的准谐振反激变换器开关符合成本效益的设计适合。

In a flying boat, that is to say an airplane having a fuselage adapted to be landed directly on the water, it will be difficult to make the several sections such as 11 to 15 inclusive movable with respect to each other and it is believed that making them so movable would not have advantages sufficient to offset increased cost and excess weight.

在一个飞行船，这就是说，飞机机身有一个适应要降落直接在水，将很难使几个章节，如11日至15日的包容性动产与尊重对方，这是认为决策他们使动产不会有优势不足以抵消增加的成本和过剩的重量。

The technology of foaming slag refining is a effective method to improve heating efficiency and reduce the cost.

钢包精炼炉的泡沫渣精炼工艺是提高热效率、降低生产成本的有效手段。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。