查询词典 difficult point

How to solving comprehensive problems in descriptive geometry is always a difficult teaching point, because good abilities of graphic thinking and space logical thinking are required for the students.

画法几何综合问题是教学的难点，要求学生具有较强的空间想象能力和空间逻辑思维能力。

The interferential effect among antennas is the researching key point. It causes not only signal process at baseband difficult but also destructive interference to radiation pattern. The interferential effect is discussed in the measured results.

天线间信号干扰的效应就是研究的重点，除了造成基频信号处理的困难外，也会造成天线间的破坏性干涉使得增益降低，量测的结果会说明信号干扰效应造成的问题，量测结果和心得会讨论。

In short, getting to the point where our economy can thrive without fiscal support may be a difficult, drawn-out process.

简言之，美国经济到达不需财政方面的支撑就能繁荣的境界，可能是艰钜的漫长过程。

The problem of concurrent line and collinear point in Elementary Geomettry is a simple problem. However it is very complex and difficult when we use Elementary Geometry theory to solve it.

初等几何中共线点及共点线的问题，本来是个简单的几何问题，然而这个问题运用初等几何方法去解决，有时会觉得非常复杂和困难。。

Meanwhile due to long-time volatilization, eluviation and transformation, most of the petrol pollutants were hydrocarbons with macromolecule and high boiling point; and the contents of the efficient nitrogen and phosphorus were very low, which made the bioremediation more difficult and became influence factors adverse to the bioremediation.

同时，长期的挥发、淋失和转化造成土层中石油污染物主要由高分子、高沸点烃类组成，且油污土层的速效氮、速效磷含量太低，直接增加了生物修復的难度，成为不利於生物修復的影响因素。

It is a very difficult problem to look for the best equalization point between these two.

在这两者之间寻找最佳平衡点是一个困难的问题。

Source assessments for six receptor sites indicated that ethene chemistry industries and motored vehichles were the most important sources of NMHCs in the city, and non-point sources are difficult to control.

通过对6个受体点的源解析，结果表明乙烯化工工业点源和流动源为该地区NMHCs人为源的控制重点，面源是控制难点。

Exclave : The relationships among the Country Points become more and more complex and difficult to demonstrate on the Topology Map with the adding of the new Country Point.

外飞地：当国家点之间的相邻关系随着国家点的增加而变得复杂且难以在地图中演示时，我们引入外飞地的概念——某国拥有一块与本国分离开来的领土，该领土被其他一个或多个国家包围，则该领土称为某国的外飞地。

Point B is in an area from which it is very difficult to extricate a ball.

问：一名球员打从A点到B点打了一杆。B点是很难把球救出来的一个区域。

What is the most difficult language point as far as you are concerned, and how did you overcome the difficulty?

您是如何克服这个难点的呢？

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。