natural experiment的例句大全

By natural experiment method and discussion method, we explored the role of examples in the establishment of ideological and moral education on juveniles.

本研究通过自然实验法、座谈讨论法，对榜样示范在未成年人品德形成机制中的作用进行了探讨。

If the Great Depression had not happened 80 years before, there may not have been a natural experiment to draw upon, and perhaps 2009 might have turned out differently.

如果80年前没有发生过大萧条，我们可能就不会有可以利用的自然实验，或许，2009年的情况就会完全两样了。

the juxtaposition of rubinstein and schueller, though, is most interesting as a kind of natural experiment in entrepreneurial style.

作为对企业模式探究的一种自然试验，赫莲娜与Schueller放在一起最有趣不过了。

" C/ LiNEAR was terrific natural experiment," Weaver said.

C／LINEAR是一个没有人为因素的实验，维沃说。

Since the natural zeolite had better absorption, dichlorvos had 10 percent degradation when the blank experiment was carried out by the zeolite only.

实验采用的载体天然沸石具有较好的吸附性能，在用沸石原样做空白实验时，发现农药敌敌畏有10%左右的降解；

Natural frequency and vibration mode obtained via mode analysis and experiment will be used to instruct the production and utilization of fire truck.

通过对臂架进行模态理论分析和模态试验，得到臂架的固有频率和振型，指导云梯的生产和使用，防止共振。

Though their ranges and tools differ, the baby's investigation and the scientist's experiment appear to share the same aim ( to learn about the natural world), overall approach ( gathering direct evidence from the world), and logic ( are my observations what I expected?) ．

尽管它们的范围和工具各不相同,但婴儿的调查和科学家的实验似乎有着相同的目的（了解自然世界）、总体方法（从世界上收集直接证据）和逻辑（我的观察结果是我所期望的吗?）．

The experiment proved that aubergine pigment was suitable to major food and it's a kind of natural edible pigment resources, which was worthy to develop.

实验证明：茄子皮天然红色素可以适用大多数食品，是一种值得开发的天然食用色素资源。

In the indoor experiment, the zwitterions copolymer is estimated as gelling agent in acidizing fluids. Evaluation standard of viscosifier refers to the People Republic of China petroleum natural gas profession standard ( SY/ T6214-1996).

室内实验评价了两性离子聚合物（AD-1）作为酸液稠化剂的性能，评价标准参照中华人民共和国石油天然气行业标准（SY/T6214-1996）。

The experiment also shows that the phosphor screen has an afterglow component with a decay time of about one minute after natural light exposure.

实验测得该闪烁屏吸收白光形成的余辉具有分钟级的衰减时间。

Mistakes in the Special Theory of Relativity from a Natural Time Experiment

从一个自然时间实验看狭义相对论的错误

The experiment observed the regulation of the snails natural death in ditch in hills region.

本实验观察了丘陵地区沟渠钉螺自然死亡的规律。

Main results as follows: 1. The experiment of toxic plant resources to natural grassland, poisonous plant research totaled 18 families and total of 61 kinds, and 20 specimens of poisonous plant were made. 2.

主要结果如下：1.本论文对天祝天然草地有毒植物资源进行了调查，有毒植物总数有18科32属61种，分类及整理常见有毒植物标本20余种。

The experiment's results indicate that FPS is an effective isolated device which can length the natural period and reduce the earthquake effect on upper structure.

试验结果分析表明：FPS摩擦摆隔震装置能够有效地延长上部建筑物的自振周期，减少地震作用对上部结构的影响，隔震效果明显，不失为一种有效的隔震装置。

The result of experiment about the influences of different environmental condition, matrix formula and method of sowing on the growth of Alstonia scholaris seedlings shows that firstly, the young plants grow better in hothouse than that under the natural conditions;

开展了不同环境条件、不同基质配方和不同播种方法对糖胶树苗木生长量影响的试验研究。试验结果表明：与自然条件相比，温室苗木生长为好；

In this paper, we have studied the theory and experiment of intelligent wide-band tunable laser around Beijing Natural Science Foundation Proposed Program and developed two testing laser system.

本文围绕着北京市自然科学基金项目，对智能化宽频带可调谐激光器进行了理论和实验两方面的研究，并初步研制出两台实验样机。

Preparation and Experiment on the Antisepsis and CO_2 Absorption of Natural Air Refreshing Agent

天然空气清新剂制备及其防腐和吸收CO2性能研究

Meanwhile, analyze the experimental result, do attack experiment use natural soil, air-dry soil, stoving soil and preparation seil, observe the difference.

同时，对试验结果进行了分析，土样采用天然土、风干土、烘干土、制备土进行击实试验，以观察试验结果的区别。

In order to protect and use the natural resources of the Zaocys dhumnades betterly, the authors have proceeded to experiment of feeding the Zaocys dhumnades by imitating to the ecosystem.

为了更好地保护和利用乌梢蛇的自然资源，对乌梢蛇进行了仿生态饲养试验。

METHODS: ① This experiment was conducted at Key Laboratory of Natural Drugs, Three Gorges University between March 2004 and January 2005. Ninety Kunming mice and 90 Wistar rats at different sex were selected.

方法：①实验于2004-03/2005-01在三峡大学天然药物重点实验室完成。选用昆明系小鼠90只，Wistar大鼠90只，雌雄不拘。