有效性

In this thesis, we theoretically analyze the fundamental reasons of profitability of technical analysis, stating the time-varying characteristic of expected return series and predictability from historical returns and other factors.

本文从理论角度分析了技术分析有效性的基础，从历史收益率等角度出发阐述了收益率的时变性特征，结合收益率波动的记忆效应，为技术分析的核心前提假设即价格趋势的存在提供了国内外研究的实证支持。

Military force is out of the question because of the danger to the South. The United States' new missile-defence system is, to put it charitably, unproven.

考虑到韩国的安危，军事打击是行不通的，而美国新型的导弹防御系统，说得好听点，还未验证其有效性。

Finally, the approach is applied to a chemical process to show its effectiveness.

最后针对一个化工过程，说明此方法的有效性。

Strathclyde chief constable recognized research q uestioned effectiveness, but claimed 20% fall in police complaints and high levels of local support.

斯特拉斯克莱德警察局长承认研究的有效性还有问题，但是声称向警察的投诉降低百分之二十，并得到当地人的高度支持。

It has proved that the double heat pipes adsorption chiller is efficient and feasible.

证明双热管式吸附制冷机这种新型结构的有效性和可行性。

The result shows the mean accuracy of classification rate is up to 95.41% for freshwater plankton images, such as chironomid larvae, cyclops and harpacticoida.

通过对红虫、剑水蚤、猛水蚤样本进行分类试验证明，平均识别准确率达到95.41%，验证了该方法的有效性。

Objective To evaluate the therapeutic efficacy and security of Iron chlorophyllin sodium in iron deficiency anemia.

目的观察铁叶绿酸钠治疗成人和儿童缺铁性贫血的有效性和安全性。

Objective To evaluate the effectiveness and safety of Chinese medicine treatment of cholelithiasis.

目的 系统评价中成药治疗胆石症的有效性和安全性。

Methods The methods of spectrophotography and chromaticity were used to test the efficiency of two kinds of denture detergent.

采用分光光度法和色度测定法分析了上海牙膏厂有限公司提供的两种假牙清洁剂的有效性。

The Stallion Guard leather and chrome cage is another nice short term wear male chastity device, it is not heavy and can be worn for longer periods than most short term devices, it does not need to be removed for urination, although essential for bathing and showering, the Stallion Guard (available from many online stores) is probably one of the better introduction chastity devices due to its lower price and effectiveness.

卫队的骏马皮革和铬笼是另一个好短期磨损男性贞操装置，它不是沉重的，可以穿较长时间比大多数短期设备，它并不需要移除排尿，但必不可少的洗澡和淋浴，该种马卫队可能是一个更好的导言贞操装置由于其较低的价格和有效性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。