查询词典 essential

Although the machine vision is not the essential item to some inland manufacture enterprises, some enterprises also can accept the quality questions such as "the label pastes crookedly","the bottle has slight defects".

虽然机器视觉对于一些内地制造企业来说还不是"必需品"，有些企业还能够接受"标签贴歪"、"瓶子有瑕疵"等似乎看起来很"小"的质量问题。

Soybean is an important crop for food and oil. It is essential to economic development in China.

大豆是重要的粮食和油料作物，在我国国民经济发展中具有重要地位。

Water is essential to the growth of crops.

水是农作物生长所必须的。

Water is essential to the growth of crops .

水是庄稼生长所不可缺少的。

Cross ratio is an essential invariant related to projective transformations,and discovering intrinsic properties of scene by using invariance of cross ratio computation is one of the hotspots in computer vision fields.

1引言交比是一个和射影变换有关的一个基本不变量，它的透视不变性已经引起了计算机视觉研究人员的重视，人们利用它从透视图像中进行物体识别[1][2]。

In conclusion, since translation is a kind of cross-cultural communication, a careful study of cultural default is essential to successful translation.

文章最后指出，翻译是一种跨文化交际活动，因此，对文化缺省的充分研究是翻译成功的关键。

It is ESSENTIAL that a piece of screen be used to filter out the crud in the oil.

至关重要的是一块的屏幕采用了在石油污物过滤。

The research result will have an essential effect on the development of cruise missile in our country.

该技术的研究成果将对我国巡航导弹的研制起到重要作用。

Essential Oral English Cruse will be used as the textbook of the oral class.

标准英语口语课程将被作为口语班的教材。

The cooling process involves complex droplet evaporation, strong convective heat and mass transfer, therefore a deep understanding of spray characteristics is essential to optimize the nozzle design and improve the cooling efficiency of the spray. This paper presents a theoretical model to describe the equilibrium evaporation process of a single droplet in cryogen spray.

为了深入了解制冷剂喷雾特性以提高冷却效率、优化喷嘴设计，利用质量传递数法推导传质方程，通过选取合适的阻力系数经验关联式建立了动量方程，考虑液滴蒸发以及与环境气体的对流换热建立了液滴能量方程，初步建立了单个制冷剂液滴平衡蒸发阶段蒸发冷却理论模型。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。