1. backward and forward在线翻译
1. There are the reliability problems of forward and backward compatible mixed solder joints in electronic productead-free transition. The correlative theory and experimental research in the field were reviewed.
在电子产品向无铅化过渡时期，存在前向兼容和后向兼容混合焊点的可靠性问题，对相关的理论和实验研究进行了综述。
2. Finally, a requirement trace model, and forward and backward trace algorithms are given to manage requirements implementation and requirements change in different phases of product line.
然后文章给出一个需求跟踪模型以及正向、逆向需求跟踪算法来管理产品线上各个阶段的需求实现情况及需求变更。
3. He faced forward; step forward; she practiced sewing backward as well as frontward on her new sewing machine; (`forrad''and `forrard''are dialectal variations).
他面朝前方；向前走；她在她的新缝纫机上前前后后的练习；（forrad和forrard是方言变体）。
4. China is moving forward, not back, and it is the revolutionary base areas, not any of the backward, retrogressive areas, that are leading China forward.
中国是向前的，不是向后的，领导中国前进的是革命的根据地，不是任何落后倒退的地方。
5. When the forward and backward filtering results are known, the proposed algorithm has low computional complexity and can be realized easily.
在正、逆向滤波结果已知时，所提出的算法计算量小，易于实现。
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6. In operation, a annular cutting knife moves forward to cut off the knife anvil (4), and when the annular cutting knife moves backward, it carries off the inner ring of the knife anvil (4), the elastic locking piece (5) is springed back and replaced.
手术时，环形切刀向前运动切断刀砧、后退时把刀砧内圈带走，弹性锁片发生回弹复位，在各种辅助机构的配合下，钉砧环便可以绕着钉砧轴发生翻转。
7. The optimization was formulated as a multiple stage optimal control problem and solved by a forward and backward iteration cycle.
利用多阶段系统优化控制理论，整个最优化问题通过一个向前和向后的迭代循环解决。
8. In the expert system, a method which combines the technology of objected-oriented and the method of if-then rule to present knowledge and a construction of knowledge base based on relational database are introduced. And then we use data base technology to built and maintain knowledge base in the part of expert system. In the design of inference machine, display the good man-machine interactive function, using backward and forward ratiocination to infer.
在专家系统部分，进行了知识库的设计，提出了综合采用面向对象方法和产生式规则表示法的知识表示方法，并采用数据库技术建立和维护知识库；在推理机设计中，发挥专家系统良好的人机交互功能，采用正反双向混合推理方法进行推理；在解释程序的设计中，采用预置文本与路径跟踪法，可以在用户需要时给出对推理结果和过程的详细解释。
9. At the same time, this paper discussed the Reasoning Machine of the fault diagnosis expert system for Mine hoist, The expert system was made with forward and backward chaining, best-first search.
本文同时讨论了提升机故障诊断专家系统推理机制，选择正反混合推理和启发式搜索的推理控制策略。
10. This article shows that education has restriction and promotion to the development of economy by explaining the influence on economic development by backward education and lacking qualified peronnel in nationality regions, The author appeals for the development of and the attachment of importance to education in nationality regions and puts forward his ideas of developing education and solving the problem of lacking personnel in nationality regions copic stategy, that is, to pay attention to basic educ...
本文通过论述民族地区教育落后，人才缺乏对经济发展的影响，说明教育对经济的发展具有制约和促进作用，呼吁民族地区要重视发展教育。并从宏观、战略上提出发展民族地区教育，解决人才缺乏问题的设想，即重视基础教育，大力发展职业技术敦育，依靠教育事业的发展实现民族地区的经济振兴。
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11. Injury to the lumbar area affects the ability to bend forward, backward, and from side to side.
腰部损伤影响到前后左右的弯腰能力，而且，髋部及下腰的旋转能力降低。
12. Under the most elementary conditions for backward stochastic differential equation introduced by Peng S., we put forward and prove a general converse comparison theorem.
在由彭实戈引入的倒向随机微分方程的最基本的条件下，提出并证明了一个一般的反比较定理。
13. For the electrocatalytic oxidation of methanol, the ratio of the forward oxidation peak current to the backward peak current of the Pt nanodendrites, nanosponges, and nanonetworks are all high (If/Ib = 2.88, 2.66, and 2.16, respectively).
至於在电催化甲醇氧化的部份，发现在铂奈米海绵、铂奈米网及铂奈米轴突中，正向峰电流与反向峰电流的比值皆高（If/Ib = 2.88、2.66及2.16）。
14. Using the forward and backward associative method proposed by Liu Inmao, we examined the nature of primacy and recency effect of the serial position effects in different median ratio(0., 0.8 and.0) with Chinese characters.
以中国汉字为材料，考察不同中数比率（0。，0.8和。0）时，系列位置曲线不同部分性质的分化。你知道它的英文吗？·在刺绣机中的狭钢条·*a。有盾状的，有鳞甲的，圆盾形的 鳞的，鼓室盾板的
15. Objective and subjective tests show that the quality of speech synthesized by the improved method is superior to the one synthesized by the IMBE algorithm with adaptive forward-backward quantization, and as good as the one synthesized by the 2.4kbps IMBE algorithm.
主客观测试表明，改进算法的合成语音质量好于自适应前后向量化IMBE算法，且合成语音质量与 2.4kb/s IMBE算法相当。
16. backward and forward
16. Since the rocking of the nipper shaft causes the nippers to move backward and forward through a series of links, the original position of nipper frame is altered when changing the detaching distance, resulting in the change of other process parameters of the comber.
由于精梳机的钳板摆轴传动钳板的方式都为四连杆机构，在进行落棉隔距的调整时，改变了连杆的初始位置，因此精梳机的其它工艺参数也随之改变。
17. Both the forward and backward formulas between object-space and image-space are presented. A stereo pair of SPOT-5 imagery acquired in across-track mode is selected and used.
经对一SPOT-5异轨立体像对的试验表明，利用改进的几何模型和视CCD线阵列侧视角为常数的仿射变换模型对立体影像进行几何处理，前者较后者的像点x坐标精度有一定的改善，物点的高程精度有所提高，平面精度两者基本一致。
18. Because of the threshold of the wavelet coefficients and the property that FAB diffusivity acts as local forward diffusion in the small gradient region, the image is denoised as well as enlarged, and as local backward diffusion in the large gradient region the zoomed image is edge preserved.
由于小波系数阈值和该扩散方程在图像梯度小的区域具有正扩散性，使得放大图像的同时去除了噪声，该扩散方程在梯度大的区域具有逆扩散性，又有效地保持了边缘。
19. This works really well because you can navigate both forward and backward from a single list.
这个工程真正好，因为你可以浏览都向前和向后从一个单一的名单。
20. 911查询·英语单词
20. FLV Player`s exceedingly simple controls allow you to navigate backward and forward through videos and play them in a loop.
视频播放器的极其简单的控制让您浏览向后和向前通过视频和发挥他们在一个循环。
1. They hit very thick ice at one point and could not move forward or backward.
2. The characters are always falling in and out of love too soon or too late, and the chronology glides forward and backward.