可变化

From this experiment, frequency response function could be found, and modal parameter also could be known by curve fitting, then compared with the differences of mode shape and natural frequency by using those modal parameters, also compared with finite element analysis, the results could be applied to detect the structure of beams and prevent it from damage and corrode for the safety in the future.

将实验中三种驱动器搭配加速度计实验分析结果较佳的一组方法，来从事结构之非破坏检测，探讨当固定梁有缺陷产生时，其结构之自然频率与模态振型的变化，并比较其不同缺陷处之固定梁实验模态结果，将来可应用於梁结构物损坏或腐蚀时侦测其安全性之分析。

Studies on changes in respiration, phosphorus metabolism and carbohydrate metabolism associated with the abscission of young fruits were made with pear, apple and crab apple.

本文指出，幼果在脱落时果实本身发生了一系列的代谢变化，如呼吸作用的下降，有机磷化物与多醣的趋向水解和蔗糖合成的加强等；并指出脱落对一定年龄的幼果可促使呼吸高峰出现。

Moreover, the myelin crimple was related to the rising of zeta potential on the surface of membrane.

皱缩的发生与膜表面的电势变化有关，是可受浓度调控的可逆过程。

The results showed that the volume density of mitochondriumand mitochondrial intermembrane crack increased according to ischemic time extension;The volume density ofmitochondrial crista decreased according to ischemic time extension;prominent defference occured after 45 min-utes of ischemia,The practice demonstrates that image analysis instrument has marked pre...

结果显示：线粒体和线粒体外室的体密度随缺血时间延长而加大，线粒体嵴的体密度随缺血时间的延长而减少，缺血45min以后即和正常对照有显著性差别。实践证明，图像分析仪在定量超微结构的变化上，具有高度的精确性，故可早期发现病变。

This article focuses on the line-line, line-region and region-region topological relations algorithm, which come down to the same question: whether there are intersections between line and line. The sweep-line algorithm was studied by many people, but has some deficiencies to be improved, in order to handle some special cases and increase program efficiency. My works as follows: rectangular envelope to reduce executive times , vector cross multiplication to determine intersection between line and line, coordinates and slope method to deal with some special cases. C program examples are showed together.(5) Finally, to prove capability and efficiency of the model and calculation method, some test systems are developed. For example, complex spatial topological relation query, parcels' exact area with the area of linear object reduced in land use, quality inspection to cadastral data according to topological rule, spatio-temporal change query of cadastral data.

将线线、线面、面面之间的拓扑关系实现的算法归结为线与线之间求交的基本问题；为处理一些特殊的拓扑关系情况，提高扫描线算法的效率，探讨了包络矩形粗滤、判断线线是否相交的矢量叉乘法、线节点重合或共线的斜率坐标判断法等改进方法；同时还设计了一种新的节点微小圆求交的算法，可应用于图斑与线状地物细分拓扑关系及地类面积的计算；（5）本文设计了实验系统，包括复杂对象的拓扑关系表达与计算程序、图斑地类面积的计算程序、基于空间拓扑关系规则的地籍数据库质量检查功能，以及时空拓扑关系和变化语义分析等原型，验证了拓扑关系表达模型和计算方法的可行性和实用性。

Further more the traffic flow theory is applied to analysis traffic congestion occurred in the link in front of crossway so that the refined model could reveal real action of traffic flow more than the former.

本文研究了在道路使用者个人时间价值的大小已知或不能准确得知两种情况下，如何以道路路段上交通量的变化为参照，以服务水平为依据，确定普遍可接受的收费费率的方法。

The annual surface runoff quantities on the land of cryptomeria,water fir andblack locust stands are smaller than that of bare land by 53.3%,43.9% and 33.5%,respectively.

各地段土壤抗冲性的垂直空间变化规律，可归纳为草被生长影响型，树木生长影响型和多因子综合影响型三种类型。

Make dramatic and measurable changes if you set crystal clear goals.

你有坚定而清晰的目标，你是可以完成可衡量而又明显的变化的。

The ingredients of crystalloid and pH were detected.

结论大量饮食猪瘦肉可导致尿pH值和尿晶体成分变化，可能是尿结石形成的重要原因之一。

In accordance with increasing concentrations of Ca~(2+), Ca~(2+)-ATPase and H~+-ATPase activity in plasma membrane and tonoplast of cucumber root were increased significantly at first, then decreased slightly later; H~+-ATPase activity in plasma membrane and tonoplast of cucumber leaf was changed unremarkably; Ca~(2+)-ATPase activity in plasma membrane and tonoplast of cucumber leaf was increased significantly at first, then decreased slightly later.

低温下，随Ca~(2+)浓度的升高根中质膜和液泡膜Ca~(2+)-ATP酶和H~+-ATP酶活性及叶片中质膜和液泡膜Ca~(2+)-ATP酶活性先升高后下降，叶片中质膜和液泡膜H~+-ATP酶活性无显著变化，说明适当增加营养液中Ca~(2+)浓度后，可提高ATP酶的活性减轻低温伤害。

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！