查询词典 practical

This is a very practical solution to avoiding airborne allergens.

这是一个非常现实的解决办法，避免过敏原空降兵。

China has also taken practical steps to build an aircraft carrier training base.

中国已采取了实际步骤来建立一个航空母舰的训练基地。

Based on the design of measurement circuit and environmental quality of practical situation, the vibration proof and airproof experiment have been carried out separately.

密封实验表明电路板具有很好的耐油污性能，抗振实验表明电路板具有很好的抗振性能，设计的电路板可以在线使用。

Our products have good seal airtight , low price and flexible rotation , and are thought of be economic and practical .

此类产品密封好、造价低、转动灵活，是一种经济实用型的产品。

The shape of the cutter could be changed according to the practical situation because of the mobility of the contact points of the metal balls. And when cutting underwater, good effects were achieved because of the Mohaupt effect and airtightness of the hollow metal balls.

利用多个空心金属球之间接触的可移动性，能随时根据实际情况改变其外形；利用空心金属球的聚能效应和密封性，可以达到很好的水下爆破切割效果。

AIT teaching methods are based on a combination of interactive face to face classes and practical tutorials.

协会教学方法相结合的基础上的互动面对面班和实用指南。

His own career at the University of Palencia, and the practical use to which he had put it in his encounters with the Albigenses, as well as his keen appreciation of the needs of the time, convinced the saint that to ensure the highest efficiency of the work of the apostolate, his followers should be afforded the best educational advantages obtainable.

他自己的职业生涯，在大学palencia ，并经实际使用，因为他已经把它放在他的遭遇与比根斯派，以及他渴望赞赏有需要的时候，说服圣表示，为确保效率最高的工作的使徒，他的信徒们应该得到最好的教育优势索取。

Alfred Nobel became very interested in nitroglycerine and how it could be put to practical use in construction work.

阿尔佛雷德·诺贝尔对硝化甘油以及如何将其实际应用于建筑工事兴趣浓厚。

In this paper, multivariate Lagrange interpolation problems are systemically discussed,and through amending Cramer Strange Proposition and proving interpolation theory, the geometry construction of the properly posed sets of nodes along the plane algebraic curve is studied, at the same time, a number of practical constructing methods are given.

本文系统阐述了多元Lagrange插值问题，通过修正Cramer奇论并用插值法加以证明，进一步对沿平面代数曲线插值唯一可解点组的几何结构进行深入的研究，同时得到了一些实用性较强的构造方法。

For a general parametric curve/surface, we usually cannot compute its exact implicit form. Even though its exact implicit form can be computed, the curve/surface implicitization involves relatively complicated computation and the degree is higher. Moreover, it may have unexpected components and self-intersections. All these unsatisfied properties limit the applications of the exact implicitization. So finding curve/surface approximate implicitization has become a practical problem. In this paper, we present an algorithm to solve the approximate implicitization of a given parametric curve by using a quadratic algebraic spline curve.

由于精确隐式化过程不一定可以实现，即使可以实现隐式曲线曲面的阶数高计算复杂，并且具有不希望的自交点和奇异分支，从而限制了隐式化的运用，所以寻求参数曲线曲面的近似隐式化问题成为很实际又重要的问题，提出利用二次代数样条曲线来实现一般平面参数曲线近似隐式化的一种算法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。