查询词典 opencast working

And then analyze the characteristic of a hypaethral quarry and some ecological and environmental impact brought by opencast working. Such as some familiar pollute source, harms brought by opencast working: botanic reakage, water pollution, edaphic reakage, water and soil loss, biomass reduce.

然后对露天采石场的特点以及开采造成的生态环境影响进行分析，如一些常见的污染源，开采造成的危害：植被破坏、水体污染、土壤破坏、水土流失、生物量减少等。

Researches show that the drive force characteristics of the electric tractor drive system based on series DC motor is close the ideal characteristics, the curves are concave, low speed with constant power, and high speed with constant torque; the electric tractor has large working speed under different shifts, but the extensive coincidence speed shows that the variable ratio of the gear is unreasonable; the maximum climbable gradient of this electric tractor is more than 30%, and does not need frequent shift when working for its extensive climbable gradient; there are many influence factors of continuous working time, which the more obvious factors are working speed and working load, the working time increases with the increase of the working speed and working load.2. Simulation researches on the drive characteristic of the electric tractor.

研究结果表明：基于串励直流电动机(来源：ABC21论文网www.abclunwen.com)的电动拖拉机电驱动系统的驱动力特性场接近理想驱动力特性场，其各挡下的驱动力特性是一组下凹的曲线，低速恒转矩，高速恒功率；同一行驶速度下所对应高挡驱动力大于低挡驱动力，这是由电机的调速特性决定的；电动拖拉机各个挡位下具有较广的稳定作业速度范围，但是各个挡位之间速度重合的范围较多，说明所用变速箱变速比与电动机匹配不合理；电动拖拉机最大爬坡度达到30%以上，并且各挡爬坡度变化范围较广，作业过程中不需要频繁换挡；影响电动拖拉机连续作业时间的因素较多，其中作业行驶速度和作业负荷影响最为明显，作业负荷越大，连续作业时间就越短，作业速度越快，连续作业时间就越短。2、电动拖拉机驱动特性仿真研究。

After the dissertation of this paper, wish it can offer a reference to opencast working .

希望通过本文的论述，能为露天开采提供借鉴，起到参考的作用。

In order to make people realize the harms brought by opencast working more and take some effective prevention and cure steps, this text has do a particular dissertate.

为了进一步使人们了解到露天开采带来的危害并采取有效的防治措施，本文做了详细论述。

The company, which is based in the northern Chinese province of Liaoning, projected 70 percent of the mine's ore could be accessed through opencast working, the newspaper reported, citing information provided by the company.

该公司总部设在中国北方的辽宁省，预计百分之七十的煤矿的矿，可通过露天工作，报纸报道，所提供的资料的公司。

Should say, the reason is many sided, have what go up objectively, the production level that is like equipment of large opencast working is not advanced ; Also have subjective go up, if the early days of ignored strip mine works, the analysis that lacks development to developing the condition of ministry of inside and outside of strip mine considers to wait a moment.

应该说，原因是多方面的，有客观上的，如大型露天开采设备的制造水平不高等；也有主观上的，如不重视露天矿的前期工作，对开发露天矿的内外部条件缺乏深入的分析研究等等。

As a result of the speedy development of the cities, the demands of stone material become more and more. Many hypaethral quarries have been built because of this, but people neglect the ecological and environmental impact brought by opencast working. And the prevention and cure steps that do isn't arrive at the goal of zoology renew.

摘要由于城市发展迅速，对石料的需求也越来越多，许多的露天采石场因此建立起来，但是他们却忽略了露天开采所带来的一系列生态环境影响，而且所做的防治措施远没有达到生态恢复的目标。

Then use a hypaethral quarry to do the ecological and environmental impact assessment and forecast. And tick off some material prevention and cure steps in opencast working, include engineering and ecological steps.

再结合某露天采石场进行生态环境影响评价与预测，并列出露天开采所应采取的具体的防治措施，包括工程措施和生物措施。

PURPOSE: The objective of this study was to survey the amount of working cast model of denture restoration, and to calculate the amount of die stone powder of each working cast model, then to classify the working cast model, with the expectation to perfuse the working cast model in clinic according to this classification, and to achieve the goal of increasing quality of working cast model and saving materials.

目的：通过测量义齿修复工作模型重量，计算各模型所含超硬石膏粉的用量，再按其粉用量，对义齿修复工作模型进行统计学分类。

Based on the present findings, it appears that all the Taiwan WAIS-Ⅲ working memory index, the single Arithmetic and the Digit Span subtests, and the span scores of the Digit Span subtest could adequately discriminate individuals without working memory impairment, but had poor sensitivity on detecting the patients who evidenced working memory impairment. Accordingly, it is suggested that clinicians should gauge the working memory index by a composite of the Arithmetic, the Digit Span, and the Letter-Number Sequencing subtests if possible. Otherwise, a caveat should be taken with care to interpret the working memory index, as estimated by a composite of the Arithmetic and the Digit Span subtests, because the chance of the increasing false negative rate becomes ineludible.

综合上述，显见WAIS-Ⅲ中文版中之工作记忆指数、单一算术及单一记忆广度分测验、或记忆广度分测验之各项广度值在区分患者有无工作记忆功能异常上皆拥有良好之区辨力，但对侦测工作记忆功能异常患者的敏感度普遍不佳，建议临床工作者应尽量取得算术、记忆广度、与数－字序列等三项分测验组合所估算之工作记忆指数；若在有限条件下，临床工作者仅能以算术与记忆广度两项分测验之组合所估算之工作记忆指数来评估受试者工作记忆，应留意假阴性比例上升的问题。

Even in the good cause of conservation he was loud, bloody loud, in his unmodulated Strine. And he was naive in a wide-eyed, right-wing way, almost genuflecting to John Howard as he called him "the greatest leader in the entire world".

他就用他那不经修饰的土著嗓音大声呼吁着环保，从他的眼睛中，右翼行为方式，称澳大利亚总理约翰霍华德是"世界上最伟大的领袖"时那种尊敬中可以看出他的孩子气。

But their risk is attenuated.

但他们的风险被降低了。