难点

And some Jadeite Jade are appraised and valuated in the end, which include various kind and various grade.

提出了对翡翠估价的难点，并探讨了各种类型各种档次翡翠饰品的价格。

The problem of analyzing scattering from cavity with a complex termination, such as jet inlet and exit of airplane, is one of the most important and challenging topics in the research area of aircraft stealth design.

以进气道、尾喷管等为代表的复杂终端腔体的电磁散射分析是当前飞行器隐身设计领域的一个热点和难点。

The auto-control of air-valve is a difficult problem in the jigger control project, the capability of the auto-control of air-valve affects the delamination of the coal bed directly. So, it is important to study the control of the air-valve.

风阀自动控制一直是跳汰机控制的难点，而风阀控制性能的好坏直接影响着床层的分层效果，因此，对风阀控制的研究尤为重要。

Based the foundation of joint distribution's generation background, the necessity of developing joint distribution for the small and medium-sized logistics enterprises in our country was explained.

文章在提出了共同配送的产生背景的基础上，重点阐述了目前我国中小物流企业发展共同配送的必要性，并探讨了中小物流企业发展共同配送的优势和难点。

However, the strategy of private brand in China is still in juvenility stage and meets many problems. There is not a powerful private brand with social influence.

但是，目前国内零售商的自有品牌战略还很不成熟，处于初级阶段，碰到了很多难点，真正具有强大社会影响力的零售商自有品牌还没有出现。

This is the difficult and hot subject in the kaolin trade.

这也是高岭土行业研究的难点和热点。

Objective: The clinical treatment of keloid is difficult.

目的：瘢痕疙瘩是临床治疗的难点，笔者对它进行分析讨论，以提高临床治疗效果。

Objective: The clinical treatment of keloid is difficult. We analyzed and discussed the clinical materials in order to improve its effect of treatment.

目的：瘢痕疙瘩是临床治疗的难点，笔者对它进行分析讨论，以提高临床治疗效果。

The problem of determination to weighting coefficient is a key and difficulty for combination forecast.

权系数的确定问题是组合预测方法中的关键和难点，提出了一种基于粗糙集理论的权系数确定方法。

The separated island platform station is a new type of metro station with many key techniques in its design and construction.

分离岛式地铁车站是一种新型结构型式。在分析分离岛式车站结构型式和特点的基础上，结合北京地铁10号线光华路站的实例，介绍了此类车站设计施工中的难点。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。