难点

A vertical profile of the 3D wellbore trajectory is generally.The challenge is how to draw the actual wellbore trajectory on the vertical profile of planned well trajectory.A planned 3D well path profile is depicted using vertical depth and projection length,however,the actual wellpath profile is supposed to be drawn using vertical depth and apparent projection length.

三维井眼一般都绘制垂直剖面图，其难点就是怎样在设计井眼轨道的垂直剖面图上描绘实钻井眼轨迹的剖面线，由于三维井眼设计剖面图是用垂深与投影长度绘制，其实钻井眼轨迹剖面图应该是用垂深和视投影长度绘制。

The research on the appraisement of TIP is not systematic in China, and remains a barrier in this area.

技术创新绩效评价在国内研究并不系统，一直是技术创新研究领域的难点。

However, in practice, many puzzles and problems are approaching during the process of study for users.

然而，在实践中遇到的许多困惑与难点给人们的学习带来了很大障碍。

Bridge deck pavement is a important pavement structure of bridges appurtenant works, and the shorting using life is always a difficulty which puzzles bridge workers.

桥面铺装是桥梁附属设施中一种重要的构件，其使用寿命短一直是困扰桥梁养管部门的一个难点。

Bridge deck pavement is a important pavement structure of bridge's appurtenant works, and the shorting using life is always a difficulty which puzzles bridge workers.

桥面铺装是桥梁附属设施中一种重要的构件，其使用寿命短一直是困扰桥梁养管部门的一个难点。

Insufficient quality data is the main characteristic of implementing the statistical quality control in flexible automation environment, aimed at this characteristic the group technology to statistical quality control for enhance the apriority of quality data and bring forward the group statistical quality control technology were introduced.

针对柔性自动化生产环境下实施统计质量控制的难点即质量数据不足的问题，将成组思想引入统计质量控制，以提高质量数据的先验性和质量数据之间的相关关系，提出了基于工序质量数据成组的成组统计质量控制(GSQC GroupStatisticalQualityControl)技术。

This paper proposes an universal e-cash system based on partially blind signature which can be divided to small pieces of arbitrary number one time, so-called single-divisibility.

针对通用电子现金系统的难点在于其可分性，本文提出的方案以SK00系统为基础，实现其转移性(SK00公开问题)，并给商家颁发电子执照行使银行的部分职能，进而提出了一个显式可分(即一次性任意分割电子现金)的离线电子货币系统；同时利用以前的技术实现了一个采用树型结构的可分电子现金系统，并比较了这两个方案和以前方案的效率；二者安全性基于离散对数问题和强无碰撞Hash函数安全性；最后本文利用代理签名给出了一个新的部分盲签名方案。

The ACA board is the most important and difficult point in the system design of airborne SAR RTDIP, which has high requirements on arithmetic speed and memory.

方位向压缩处理板是机载SAR实时数字成像处理器系统设计中的重点和难点，对系统的运算速度及存储器容量均有较高的要求。

Some arithmetics are put forward to solve the difficulty in the realization.

针对实现过程中遇到的问题及难点提出了相应的四种解决方法。

By using the image seek technology to change the capacity array parameter of fingerprint sensor ,it can scan the fingerprint diagram of many

简要介绍社保卡制作的系统构成及技术难点，主要介绍高质量指纹图像的提取。

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。