可变化

The innovations of this paper as follows:(1)The topological relation model between complex spatial objects is brought forward, which represented by some composite basic 9I matrix and results in general signification.(2)Time and space integrated topological model is suggested to reason about spatio-temporal change types;(3)Sweep-line algorithm is improved, and a new little circles of polyline nodes overlapped with region method is proposed. As result, it's efficient to calculate line-line, line-region and region-region topological relations.

本文的创新之处在于提出了一种能够描述复杂对象的数学表达模型，将复杂对象间的复合拓扑关系表示成基本拓扑关系的组合，具有一定的普适意义；研究了时空拓扑关系的内涵和表达方法，说明利用时空拓扑关系可隐性地实现时空变化语义的查询；对平面扫描线法进行了改进，提出了一种新的节点微小圆求交的算法，可有效地解决线面、线线、面面拓扑关系的计算问题。

The range capability of whole family can cover China domestic lines, neighboring region and transoceanic lines, and can fully meet the requirements of airlines to flexibly organize their fleets.

上述六种构型中，根据不同的布置，客座数可在120-210之间变化，航程能力可覆盖我国国内、周边区域和国家、跨海飞行的要求，充分满足航空公司灵活配备机队的需要。

In this paper, based on the experimental studies, the effects of the ARC-3 glass fiber for the improvement of the flexural tensile and the unconfined compressive of the concrete are analysed. Further statistical relations between flexural tensile strength, volume ratio of fiber and curing time, and a mathmatical model of the flexural tensile is presented. Finally, the optimum fiber volume ratio in the concrete is presented. In this paper, a mathematical model of the volation between the flexural ten...

本文通过大量试验研究，分析了ARC-3型高耐碱玻璃纤维对水混混凝土抗折强度及抗压强度的增强效果；提出了抗折强度与纤维掺量和龄期的统计关系，以及抗折强度的数学模型；提出了最佳纤维掺量；从玻璃纤维增强混凝土的应力-应变关系分析了其塑性性质和抗裂性能，对其抗压模量和抗弯模量的测试分析，提出工程设计时可忽略模量的变化；本文给出的抗折强度与抗压强度关系的数学模型，可直接供生产单位使用。

Is given the relationship of the warp tension from the back rest at different warp beam diameters of d.

根据(14)式我們可得到这样的結論：在加了导紗辊及经軸压掌后经紗张力的变化可大大的减小。

The high inoculum levels increased the bacterial growth and shorten the time for antifungal substance production. The powder of rice, soybean cake, yeast, and wheat bran, CaCO3 and KH2PO4 were better nutrients for the bacteria growth and antifungal substance production. There were two stages during the fermentation process at 30℃. The growth of bacteria increased at the first 24 h and the pH of broth rose, but no antifungal activity was observed until 41 h later and reached to the highest level at 114 h.

基本营养物质的初步筛选试验证明：大米粉、豆饼粉、麦麸、酵母粉和CaCO3及KH2PO4是发酵培养基中最佳的营养物质，可满足抗菌物质产生对碳、氮和矿物质的营养需求。B-903的发酵过程可分为两个阶段：在30℃下，24小时内，细菌数量达最大值，pH值由低向高变化，但此阶段检测不出抗菌物质的活性；第二阶段，培养41小时后，抗菌物质活性开始显露，至112小时后达最大值，pH值也逐渐由高变低。

According to the requests, the curve is changed into abstractive dimension of the mould inner space.

在分析结晶器内坯壳和气隙形成机理的基础上，提出了结晶器锥度设计原则，并建立锥度计算模型，优化设计出三种不同形式的抛物线锥度结晶器，可依据不同工艺条件设计出锥度变化的曲线，并可根据要求转化成内腔绝对尺寸。

Objective To establish a method for co-culture of amoebae and endosymbionts, also for continuously observing the microphenotype of amoebae.

摘要目的建立一种既可做阿米巴与病原体共培养实验，又可连续观察阿米巴活体形态细微变化的培养技术。

Objective To establish a method for co,culture of amoebae and endosymbionts,also for continuously observing the microphenotype of amoebae .

目的建立一种既可做阿米巴与病原体共培养实验，又可连续观察阿米巴活体形态细微变化的培养技术。

This method is more accurate than the conventional ventilatory volume approach and more comprehensive than EMG of diaphragm. It can be used to measure respiratory regulation function in normal and morbid state, and in the study of apneustic center chemical sensitivity and output variable under chemical and mechanical load.

该方法比通常使用的通气量法准确，比心膈肌电图法反映全面，可广泛应用于人在正常和疾病状况下呼吸调节功能的测量，也可用于化学性及机械性负荷条件下对呼吸中枢化学敏感性及输出变量变化的研究。

Education target should clarify what can the student do after study ends, will have what kind of change, the behavior verb that uses expressive end consequently wants specific and clear, make as far as possible have can evaluate, apprehensible characteristic, want to have good operation sex namely.

教学目标应阐明学生在学习结束后能够做什么，将会有怎样的变化，因而使用表达目标的行为动词要具体明确，尽可能使之具有可评估、可理解的特征，即要有好的操作性。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！