Comparison between a current share price, portfolio of shares or a stock index and the price of the same instrument, portfolio or index at a given time in the past.
指股票的现行价格、股票组合或某种股指，与过去某一时刻相同金融工具的价格、组合或指数间的比较。
Objective Comparison of the curative effects on primary trigeminal neuralgia treated with trigeminus stereotactic instrument and free-hand puncture on semilunar ganglion.
目的比较应用三叉神经立体定向仪与徒手穿刺三叉神经半月节治疗原发性三叉神经痛的疗效。
To cultivate the right instrument of perception there must be no comparison for when you compare you cease to understand.
为了培养正确的觉知工具，不能比较。因为当你比较时，你就不在理解了。
The technical comparison shows that the laser centering instrument is superior to conventional centering methods in the installation and adjustment of equipments.
通过技术比较，证明激光对中仪用于设备的安装调试具有传统对中方法难以比拟的优势。
Measuring tools e. g. calipers , micrometres, comparison scales, height measuring instrument, Gauge blocks, and etc.
测量工具系列，如：卡尺、千分尺、比较仪、测高仪、块规等。
Finally, the comparison between standard values and measurement values derived from the new instrument for the standard coals is carried out.
同时对煤样的实际测量值与标准值也进行了比较。
This instrument can simultaneously survey many parameters, which realizes roughness survey comparison and appraisal integration.
该仪器能够同时测量多个参数，实现了粗糙度测量评定一体化。
The pilar difference measurement and instrument comparison is basic to the quality and usage of the recorded geomagnetic data.
墩差测量和仪器比测是地磁观测中最基本的工作，直接影响到观测资料的质量和使用价值。
Letter reports with comparison analysis included with survey instrument.
对比分析的文字报告，包括调查方法和工具。
A comparison controlled automatic temperature-measuring and -controlling instrument is described.
本文介绍了一种比较控制式温度自动测控仪。
The photosynthetic characters comparison between five color-leaves plans were carried out using the CI-340 photosynthetic instrument under the conditions of different temperature and humidity.
用美国CI-340手持式轻便型光合仪对五种彩叶植物的光合特性在不同温湿度条件下的日变化进行了比较研究。
The photosynthetic characters comparison between five color-leaves plans were carried out using the CI-340 photosynthetic instrument under the conditions of different temperature and humidity.
用美国CI-340手持式轻便型光合仪对五种彩叶植物的光合特性在不同温湿度条件下的日变化进行了比较研究。
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