过于精确的

Analysis for testability is widely used in DFT and test pattern generation, but most testability analysis algorithms have the shortcoming of either inaccuracy or being too complicated. A new method to calculate the signal probabilities of the nodes in IC is pre-sented in Chapter 7 of this dissertation. The signal probabilities by our method is more exact than by the previous ones. A symbol of the signal probability at the fan-out node is created and is propagated to the RFON (Reconvergent Fan-out Nodes). At the RFON, the expression containing the symbol is simplified using the rule which corresponds to the law of identity in Boolean algebra. After the expression is simplified, the symbol is substituted with its numeric value. Theoretical analysis shows that this method is concise and has a low computing complexity.

可测试性分析在可测试性设计和测试生成中都有着广泛的应用，然而大部分的可测性分析方法都存在不精确或者过于复杂的毛病，在第七章中作者提出了一种新的计算IC电路节点的信号概率值的符号算法，该算法得出的信号概率值比用以往的算法法得出的要更准确，也更简洁，针对电路中的扇出节点重汇聚现象，我们在每一个扇出节点定义了一个信号概率的符号，在以后的计算中一直使用该符号参与计算，直到该符号传播至重汇聚处，利用一定的规则把含符号的表达式化简，再将符号的真实值代入，在计算符号概率的过程中定义了一个和布尔代数中的同一律相对应的运算规则，通过该运算规则，使得信号概率的结果更加准确，符号算法具有简洁方便，计算复杂度小的特点 4。

However, at this stage do not take accuracy too far - a little lassitude is tolerated even in a test.

然而，在这个过程中不要要求过于精确-即使在比赛中，小小的懒散也是可以容忍的。

It is shown that the finite element method can simulate the crash course and can make up the insufficiency of information obtained in expenments and simplified computations and the oversimplicity of the model

分析结果表明，利用有限元法可较精确的模拟碰撞过程，弥补了实验和简化计算获取信息量过少及模型过于简单的不足。

Teaching full of playfulness has great meaning for changing the phenomena of the lose of man\'s integrity, freedom and intrinsic need. It is also meaningful to change the facts that teaching is separated from real life, that teaching highlights results and despises process, that teaching process pursuits for precise, that teaching rights are catabolized, that teaching strengthens learning by rote and mechanical training.

充满游戏性的教学对改变教学中人整体性、自由性、合理需求性的失落，教学脱离现实生活，只重过程，不重结果，教学过程过于精确化，教学话语权异化，死记硬背，机械训练等现象有重要的意义。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。