变化

The thoughts of teaching optimization are propounded by these theories in the aspects of naturality,machinerility,biologicality,and sociality of human.These theories have with the development of the human understanding and from objective to human nature,machinery to system,instinct to affection and communication to motive.

随着对人的各种属性认识的不断加深，这些理论也在不断发展、变化，表现为：对教学对象的认识从客观的自然走向主观的自然，研究观点从机械观走向系统观，研究视界从本能论走向情感论，研究层次从外部交往互动走向内部动机激发，为教学优化提出新的指导思想。

Objective: The present research was undertaken to explore the expression and distribution of PS integrin subunit, fibronectin, oestrogen receptor and progesterone receptor in normal human oviductal tissue during various phases of the menstrual cycle, and to study the morphological features of human oviductal epithelium during the menstrual cycle.

目的：探讨整合素β_3、纤维粘连蛋白(fibronectin，FN)和雌、孕激素受体(oestrogen receptor，ER、progesterone receptor，PR)在人正常输卵管粘膜内的表达、变化，结合人输卵管粘膜上皮在月经周期内的形态学改变，与输卵管妊娠的改变进行比较研究，以期增进输卵管生理和输卵管妊娠病因的认识。

However,different periods were found in middle and bottom waters, due to the influences of tidal induced physical forcings such as resuspension and stratification.

表层叶绿素α浓度、微微型浮游生物和病毒丰度的周日波动呈现典型的半日周期(11-13小时)变化，而中层和底层由于沉积物再悬浮作用和水体层化现象的影响，波动周期与表层明显不同。

Saccharum officinarum ; invertase ; change ; growth habit ; carbohydrate ; storage.

甘蔗；蔗糖酶；变化；生长习性；碳水化台物；贮藏

Based on the theory of metallogenic system, the authors studied the whole proces s of formation, transformation and preservation of uranium deposits in the Taosh an orefield in the aspects of metallogenic background and environment, ore-forming elements, ore_forming process, and metallogenic products as well as their pre servation.

中文摘要：文章以成矿系统为理论基础，从成矿背景和环境、成矿要素、成矿作用过程、成矿产物及其保存等方面阐述了桃山矿田铀矿床形成-变化-保存的全过程。

What we want to say is that realism must think over the demand of the new age, meet the demand of the change of life and the new aesthetics interest and the new aesthetic ideal of the people. We should sublate the tradition on the basis of inheriting and seek for a development, change and reform of realism.

但是，我们又要明确地说：现实主义要思考新的时代的要求和生活变迁的需要，以及群众新的审美情趣、新的审美理想，在继承的基础上，对&传统&要扬弃，而且必须要求自身去发展、变化、创新。

At the same time, the intensity ratio of the ICT fluorescence to the LE fluorescence, I〓/I〓, shows a "bell"-shaped variation with increasing CTAB concentration The intensity ratio was found to level off after the CMC of CTAB Together with the data from UV-Vis absorption spectroscopy, electric conductance measurements and the control experiments with tetramethylammonium bromide, it was concluded that the"bell"-shaped variation in the intensity ratio before CMC is due to the formation of premicelle aggregates consisting of ICT fluorophore and CTAB.

此时，ICT荧光强度与LE荧光强度之比，I〓/I〓随CTAB浓度增大而呈&钟形&变化。当CTAB浓度高于CMC时，I〓/I〓为一常数。根据紫外-可见吸收光谱，电导以及四甲基溴化铵对照实验的结果可知，当CTAB浓度低于其CMC时，I〓/I〓的&钟形&变化是由于长链对二烷基氨基苯甲酸与CTAB组成的胶束前簇集体形成所致。

The Na+ and K+ currents of hippocampal neurons before and after hypoxia-reoxygenation with xionggui diwan pretreatment: Before hypoxia-reoxygenation, the ampli tudes of Ⅰ Na and J K of hippocampal neurons at the threshold point were very similar, without significant difference.

芎归滴丸预处理后缺氧-复氧前后海马神经元的Na+、K+变化：缺氧-复氧前海马神经元Ⅰ Na Ⅰk在阈值处的幅度很接近，差异无显著性意义。

Roy anderson recreated a hyperspace in a very simple form ,in which people, time, events, details and changes were all fixed and foreshortened and absolutely unified , been looked upon and supwevised.

罗伊·安德森以十分简约的形式再造出一种超空间，在其中的人、时间、事件、散片、细节、变化，被固定，被凝缩，被绝对统一，被旁观被监视。

With the passing of the times, its theory, practice and legislating are developing and changing constantly.

缔约过失责任是1861年德国法学家耶林提出的特殊责任制度，其理论、实践和立法随时代的变迁而不断发展、变化。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。