useful的例句大全

Useful minerals of fine particles, distribution of tightness, and lots detrimental impurities lead to high content of fine particles and argillization, which deteriorate the separation environment and disturb the floatation process.

胶磷矿中有用矿物颗粒细、矿物嵌布紧密、有害杂质较多，导致浮选入料微细粒含量高、泥化程度高，恶化了分选环境，使浮选过程受到干扰。

Courses in mechanical drawing and architectural drawing are not necessary and, in fact, may be less useful than general academic subjects and freehand drawing classes.

机械制图和建筑绘图课程是没有必要的，事实上，可能会比一般学科和徒手画类的有用。

In the process of laser cladding, there were noise caused by powder splash, arc light and dust, so it was necessary to pre-process images to get useful information.

由于激光熔覆过程中存在粉末飞溅、弧光和烟尘等噪声干扰，在提取图像有效信息时对图像进行处理。

Due to a lack of useful fossil evidence about the history of these arachnids, the same genetic study that placed them in primeval times also used their test results to support a theory that they hark back to a common, ocean-dwelling ancestor.

由于缺少能证明其历史的化石，一个对原始时代的基因研究测试结果同样认为它们的祖先曾居住在海洋里。

Tank filled with water for keeping fish and underwater animals. found in still or slow-moving fresh or brackish water; useful oxygenator for cool water ponds and aquaria.

生长于静止的或缓慢流动的淡水或微咸的淡水中；对于冷水池塘和养鱼缸来说是一种有用的充氧器。

The practice has proved that the method of using the spray powder pile is very useful and effective to solve the depression of bridge approach road.

实践证明，利用粉喷桩这种措施对于解桥头引道沉陷是行之有效的。

Review and Useful Lessons& a brief Review on the Financial Accounting Concepts by AICPA at the ( 1961-1973) of CF

回顾与教益&美国早期（1961-1973）AICPA研究财务会计概念制订CF项目的简短回顾

Our missiles will be a useful bargaining counter in our negotiations with the Russians, ie may be given up in exchange for concessions.

在我们与俄国人的谈判中，我们的导弹是讨价还价的有利资本。

Checklists are most useful for people with limited time, such as the surgeon with an anaesthetised body on the table.

清单对于那些时间有限的人们来说最有用，例如急着给躺在手术台上身体麻醉的病人做手术的外科医生。

This was very useful for someone who had never taken a business, finance or economics course, and who had been tipped in vocational aptitude tests to be well suited to be a librarian.

对没有修习过商业、金融或经济课程的人，还有那些在职业能力测试中被认定只适合作图书管理员或护林员的人来说，这非常有用。

they are useful for short term prioritisation and planning, but when you need to understand what your system does six months after implementing a story, the card isn't going to help much.

在做短期的优先级排列和计划时它们非常有用。 但是当一个故事完成六个月后，如果你需要了解系统时，这些卡片却不会有太大的帮助。

But creating something useful is the bugaboo.

但是，创造出有用的东西听来有点唬人。

AIM Psychological studies on anti-terrorism armed policemen are useful for building up psychological quality of acclimatizing themselves to special work and improving their mental health status. This is important both for theory and practice.

武警反恐分队官兵的心理学研究有利于官兵增强适应反恐这&特殊职业的心理素质，提高武警反恐分队官兵整体心理健康水平，具有重要的理论和实践意义。

At last, in the afterwords, the article introduces the defects and imperfections of our green consumption, and tries to put forward many useful suggestions.

最后在结语中分析了我国绿色消费模式存在的缺陷与不足，并试着提出一些有益的见解及主张。

Afterwords, a new concept, local domain clutter degrees of freedom, has been presented. It is very useful for designing the processor.

同时提出了局域杂波自由度的概念，为简化处理器的设计提供了理论依据。

So it is very necessary for making use of spatial data mining and knowledge discovery to mine aforehand unknown and potentially useful spatial patterns from spatial database.

因此，利用空间数据挖掘和知识发现从空间数据库中挖掘出事先未知的、却潜在有用的空间模式变得十分必要。

This concept becomes more and more important in ANSA, and is useful for understanding the Cfengine software as well.

这个概念在ANSA中变得越来越重要，对于理解cfengine软件也非常有用。

The French aristocracy then learned of these useful items from their English friends and called them "Capote Anglaise"-English Raincoats.

法国贵族后来从他们英国朋友处得知这些有用玩意，并将之称为“英国雨衣”。

The results of five examples with different R-shape annuluses around the central body of the pipe are presented and the reason why they improve pipes performance is discussed, and an useful programme for optimal design of the pipe is offered.

计算了中心体上具有不同形状R环的5个算例，并根据计算结果讨论了R环改善排气管性能的科学机理，为R环的优化设计提供了一个参考。

But if the waveform is too smooth or anamorphic it will reduce useful information provided by data and identification accuracy.

但是过于平滑的或有失真的波形会减少数据提供的有效信息，降低辨识精度。