背景情况

These pre-entry conditions not only tell us the direction but often tell us the present strength of the directional trend andthe best time frame to be trading right now.

这些市场背景不仅告诉我们趋势方向（上升、下降还是横盘整理），在很多情况下还能告诉我们当前趋势的力度以及我们应该选择的交易时间框架。

Taking boundary reflection, natural degradation and background value into consideration, methods for calculating characteristic parameters of pollutant zone with outfalls randomly placed were presented, and formulas under simplified conditions were proposed.

全面探讨连续点源河流污染带的几何特徵，在考虑了两岸边界的一次反射、污染物的降解和背景值共同影响的条件下，给出排污口在任意位置的污染带特徵参数的计算方法，在简化情况下给出了直接计算公式。

The default rate for CAP borrowers was only a quarter what it was for subprime mortgage holders, even though the incomes and backgrounds of borrowers were similar.

CAP 的借用人(同时也是次级信贷的持有人)违约率相对于只借了次级信贷的人只有其四分之一，即使是在借用人的收入和背景都相似的情况下。

In order to show the true situation of conjecture and hypothesis thinking activity of middle school students when they are doing scientific activities, this study takes the physics subject as the background, the students of grade 3, junior middle school and grade 2, senior middle school as research subjects. We use a well-knitted questionnaire and clinic interviews which is combined with two true question situation to examine the students who are selected from 4 middle schools in Dongkou County of Hunan Province, the study has a comprehensive and detailed first-hand materials.

为了深入了解中学生在科学活动中进行猜想与假设思维活动的真实情况，本研究以物理学科为背景，以初三和高二学生为研究对象，通过精心设计调查问卷以及两个真实的问题情境，采用问卷调查和访谈相结合的方式，在湖南省洞口县随机选取四所中学的224 名中学生进行了关于猜想与假设思维活动的调查研究，获得了比较全面、详细的第一手资料。

With the background of the first sole-layer lining water tunnel - Qingcaosha raw water tunnel undercrossing Yangtze river, and based on the engineering characteristics, building requirements, geology and surrounding environment, this paper analyzes technical difficulties in the course of construction from the aspect of construction of hyper deep pit and long-distance tunnel.

摘 要 文章以国内首例单层衬砌输水隧道工程－青草沙原水过江管工程为工程背景，在深入研究工程特点、建设要求、工程地质情况、周边及沿线环境的基础上，从超深基坑施工和长距离隧道施工的技术难点进行分析，并提出控制措施及建议。

According to the application background of the 7000 m manned underwater vehicle and with monocular CCD cameras as sensors, two visual station keeping methods for underwater vehicle are proposed, i.e. the model-based monocular vision positioning for the target when model is known, and the feature-based visual servoing for the target when model is unknown.

以7000m载人潜水器的水下悬停为应用背景，以单目CCD摄像机为传感器，提出了基于模型的单目视觉定位和基于特征的视觉伺服两种水下机器人视觉悬停技术方案，分别适用于已知模型的观察目标和未知模型的观察目标两种情况。

In most cases, context helps or hurts us by setting the stage for expectations.

在许多情况下，背景通过设定期望情景帮助或伤害我们。

This research takes the background by the new round elementary education curriculum reform,Through to the Chaoshan area middle school singing master new curriculum approval situation's questionnaire survey and the case interview, discusses affects the teacher curriculum sympathy the primary factor, and how to enhance the Chaoshan area Junior middle school teachers to propose the corresponding countermeasure to the new curriculum sympathy.

本研究以新一轮的基础教育课程改革作为背景，通过对潮汕地区中学音乐教师新课程认同情况的问卷调查和个案访谈，来探讨影响教师课程认同感的主要因素，并就如何提高潮汕地区初级中学教师对新课程的认同感提出相应的建议与对策。

The article shows a new kind of power controller of micro-satellite. The controller is composed of charge control. Discharge control, shunt control and the equilibration circuit. The output voltage is stabilized by an automatic circuit controlled by the PWM signal, which is produced by comparing the sampling value of the output voltage with the reference voltage. The application indicates that the system which insured the safety property of Li-ion battery series runs stably as well as satisfied the need of the load no matter in what situation.

在我国航天用锂离子电池组控制电路研究相对落后的背景下，设计一了种新型的微小卫星电源控制器；该电源控制器包括充电、放电、分流和均衡保护部分，充电、放电、分流部分通过将母线电压的采样值与预设参考值比较产生PWM信号对制电路进行自动调节，均衡通过采样和处理器计算比较实现；实验结果表明，该控制器工作稳定，确保了锂离子电池组工作安全的同时，很好地满足了各种情况下母线负载的需求。

Along with the opening of electricity market at generation side and the implementation of separating power plants from power networks and generation bidding to power network, power plant have been more and more concern about their economic production management.

本课题就是以山西太原第一热电厂的管理控制一体化项目作为背景，针对以上情况，重点研究了为达到利润最大化的目标，各发电公司在电力市场中的两个重要的经济运行方面问题：动态成本分析和负荷的优化调度。

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。