可继承性

A new generalized object oriented Petri net model which can be used to evaluate the capability of equipment support was proposed. Its formal definition was given. The abstract place, abstract transition, message color and the message transferring function between objects were introduced in this model. This model has good modularity, inheritability, reusability, and maintainability, and can reflect flexibility and dynamic features of complex system. An example was given in the paper.

提出了一种可用于装备保障能力评估的增强型扩展的面向对象Petri网模型，给出了该模型形式化描述，引入了抽象库所、抽象变迁、消息颜色以及对象间的消息传递函数等新的概念，更好地体现了面向对象的思想，具有很好的模块性、继承性、重用性和可维护性，能够反映复杂系统的动态柔性特点，最后给出实例。

In chapter three, in order to distinct N 0?matrices that defined by deferent references, we will use the following notions. A matrix is called N_0~2-matrix if the matrix is nonpositive and its all-principal minors are nonpositive.

不可约矩阵Perron余的Perron向量同原矩阵Perron向量有着继承性，另外非负矩阵的Perron余也可用于Perron根的估计，因此非负矩阵的Perron余的研究有着重要的理论价值。

In order to describe the complexity of aircraft and make the Digital Product Definition model hereditable and patulous, a Product-Process-Resource Knowledge Model for aircraft is presented.

为描述飞机产品的复杂性，使数字化产品定义模型具有良好的可继承性和可扩展性，提出了飞机产品－过程－资源知识模型。

In order to describe the complexity of aircraft and make the Digital Product Definition model hereditable and patulous, a Product-Process-Resource Knowledge Model for aircraft is presented.

为描述飞机產品的复杂性，使数字化產品定义模型具有良好的可继承性和可扩展性，提出了飞机產品－过程－资源知识模型。

The PPR Knowledge Model is applied in DPD of an aircraft's wing, and its application shows that with patulous hereditable, this model can provide single data-source for product development during product life cycle.

应用结果表明，该模型能够为产品开发的整个生命周期提供单一的数据源，并具有良好的知识可扩展性和可继承性。

The PPR Knowledge Model is applied in DPD of an aircraft's wing, and its application shows that with patulous hereditable, this model can provide single data-source for product development during product life cycle.

应用结果表明，该模型能够为產品开发的整个生命週期提供单一的数据源，並具有良好的知识可扩展性和可继承性。

It creates a non-invasive, convenient and low-priced system based on the compatibility, transplantability, low cost and powerful functions of personal computers,and the successivity feature of modern programming technology and the new highly automatic virtual equipments.

充分利用PC的兼容性、可移植性、低成本及其强大的功能，现代编程技术的继承性和高度自动化的新一代虚拟仪器，构建具有无创性、方便快捷且费用低廉，与其它心血管检查方法有互补作用的，可作为临床、科研和教学的实用性系统。

These results indiacated that tranferring macrophages combinedwith cytokines could be a new adoptive immunotherapy protocol foradvanced cancer,and rTNF used in vivo locally could induce andactivate macrophages to kill tumor cells.Monocytes when activatedunderwent a series of phenotypic and functional changes includingthe expression of IL-2R which may provide an important immunoregu-latory pathway.The presence of lectin-like molecules on thesurface of monocytes and tumor cells may bring theeffector/target cells together,thus facilitating the inductionof apoptosis in target cells by triggering the production ofcytolytic factors and the modification of target of targer cell surface anti-gens.(such as HLA-DR).

综合以上结果可以得出以下结论：转输巨噬细胞并结合细胞因子的联合应用是肿瘤继承性免疫中的又一新的、有潜力的方法；抗肿瘤细胞因子rTNF可通过激活巨噬细胞在体内抑制对其不敏感的肿瘤细胞的生长；人单核细胞在一定条件下激活后，可表达IL-2R，进而一方面增强其自身对IL-2的敏感性，另一方面在体内也具有调节T细胞功能的作用；单核细胞和肿瘤细胞上存在的凝集素类受体可促使两种细胞之间在凝集素介导下相互接近，并诱发单核细胞产生细胞毒因子，以及通过调节靶细胞上表面抗原的表达，促进诱导靶细胞的细胞凋亡。

RESULTS: Concept, acquire style and characters of memorizing, undermaster the memorizing-like knowledge depends mainly on simple memory,few related to understanding and experiencing, with strong inheriting and depends on the logic , and memorizing was relatively secondary , also with large scale depends on experience as well as the feeling based on experience.

结果：提出了记忆、理解和体验三类知识划分的概念、获取方式和特征。①记忆类知识的掌握主要依赖于单纯的识记，较少涉及理解和经验，具有很强的继承性和传播性。②理解类知识的掌握主要依赖于逻辑，记忆处于相对次要的地位，也具有可继承性和可传播性。

Results of inversion show that pre-Tertiary deposition in Dongying depression is controlled with westnorth structures. Archaean group is the crystal basement of Dongying depression, which is a north steep and south gentle rift subsidence basin striking from eastnorth to near westeast, and the deepest position is up to 12000 m at the area of Xianhe and Xinzhen. The configuration of Ordovician of lower Palaeozoic system highly inherits that of Archaean group and both have a strong consistency. The configuration of Mesozoic inherits that of lower Palaeozoic system as a whole, but filling and local reconstruction are distinct, and the scope of Dongying depression has obviously decreased.

结果表明，东营凹陷前古近系沉积主要受北西向构造的控制，太古界构成东营凹陷的结晶基底，是一个北东转近东西向的北陡南缓的断陷，最深处位于现河、辛镇一带，可达12000 m；下古生界奥陶系构造具有很强的继承性，其构造格局与太古界有很强的一致性；中生界宏观上继承了下古生界的构造形态，但填平补齐和局部改造比较明显，凹陷范围明显缩小。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。