向性的

Chemotropism A TROPISM in which the stimulus is chemical.

向药性：刺激物是化学物质的一种向性。

In this dissertation, the ideas of simulating directed Hamilton path problems by sticker systems are designed using their massive parallelism; Then some properties of directed graphs and sufficiency and necessity conditions of existing Hamilton paths in graphs are presented based on the analysis to directed Hamilton path problems according to the properties of languages generated by the sticker systems.

本文利用粘贴系统的巨大并行性，首先设计了模拟有向哈密顿路问题的粘贴系统，然后通过此粘贴系统所产生语言的性质对有向哈密顿路问题进行分析，给出了有向图的若干结构性质以及图中存在有向哈密顿路的充要条件。

To properly explore the photoreceptor for the negative phototropism in rice (Oryza sativa L.) root, lights with different wavelengths were applied to investigate the effect of light quality on phototropic response. The negative phototropic bending could be induced prominently by blue/UV light, while not be induced by red and far-red light.

为了研究水稻根负向光性的光受体，观察了光质对稻根的负向光性效应，用紫外－可见分光光度计测定了水稻根冠浸提液的吸收光谱，并对根冠中的蛋白质进行了SDS-PAGE电泳分析。

The R effect on time-dependent phototropism was further studied by characterizing its fluence-response relationship. The results showed the R effect was a low-fluence-response, unlike those on pulse-induced phototropisms that show a very-low-fluence-response mode.

本研究进一步分析了红光对蓝光照射时间依赖型向光性影响的光量反应曲线，发现该反应不像红光对脉冲蓝光诱导的向光性的影响那样属于超低光量反应，而是一种低光量反应，且之后的脉冲远红光可以逆转红光对TDP影响的效果。

In the biological treatment, anaerobic biological treatment is used to reduce selenate ions and/or selenite ions presented in the raw wastewater to transfer to single insoluble selenium.

在生物法中，采用厌氧生物处理来降低原始废液中可溶的硒酸盐与亚硒酸盐，并转化为不溶性的单质硒，从而以不溶性单质硒的形式去除硒酸盐或亚硒酸盐；在絮凝沉淀法中，通常是向生物处理后的废水中加入一种金属盐，使该金属盐与可溶性硒反应并生成一种不溶性硒化合物，从而以不溶性硒化合物形式去除残留的可溶性硒；在过滤法中，将絮凝沉淀法中残留在废水中的不溶性硒去除，这样就能在不用大量化学药剂和不产生大量沉淀的情况下去除含硒废水中的可溶性硒。

Based on the transfinite interpolation theory, an improved algebraic grid generation method is presented in this paper. Our improvements of existing algebraic grid generation method include:(1) orthogonality control, which greatly improves grid orthogonality adapted to viscous flow calculation;(2) weighted average smoothing, which efficiently handles with grid intersection due to concave corner existence;(3) normal vector control, which adjusts grid smoothing near convex corner.

基于无限插值理论，引入本文提出的网格正交控制、物面法向量控制、加权平均光顺措施，给出了一种改进的空间网格生成方法，有效克服了传统无限插值网格生成方法在复杂外形网格生成方面的缺陷，有效改善了网格的法向疏密性、贴体性及周向网格的均匀性，对真实飞行器部件网格生成非常迅速。

There are three copies of R fragment in the S mt-genome, and each copy contains two closely adjacent open reading frames: orf355 and orf77. Among these three copies two BamHI fragments were cloned, and the sequence analysis showed that cox1 and cox2 gene lies upstream of the R region in each fragment, respectively. However, they locate in different strands and head to head with R. In this study, we found that:(1) The expression of cox1 and cox2 is not affected by the transcription of R region;(2) The two copies of R region transcribe in large amount in the microspores, and produce transcripts of 1.6kb and 2.8kb, respectively, in the sterile microspores; However, the abundance of these two transcripts is reduced in the fertility restored microspores, realized through the mRNA decay, and this reduction occurs at the uninucleate microspore stage;(3) In the sterile microspores, the 5 terminus of the 1.6kb transcript contains a palindrome region that can fold into a stem-loop.

本研究发现：(1) cox1和cox2的转录没有受到R区转录的影响；(2)两个拷贝的R区在在不育花粉中高丰度表达，其转录本大小分别为1.6kb和2.8kb；而在育性恢复的花粉中，这两个转录本的丰度被大大降低，进一步分析表明这一结果是通过mRNA分子的降解途径来实现的，此降解过程发生在单核花粉期；(3)在不育花粉中，1.6kb转录本的5′末端具有一段可形成茎环结构的迴文对称序列，而在可育花粉中，其5′末端短缺了9个碱基；(4)在不育花粉和育性恢复的花粉中，R区转录本的加尾位点都集中位于一个3′茎环结构之后；(5)不管是在不育花粉还是育性恢复的花粉中，orf77区域内均在第52位和100位核苷酸处发生了不同频率的C向U的编辑，从而形成UGA终止密码；(6)不管是orf55-orf77的成熟转录本还是转录前体分子，都已被加上了Poly尾巴，表明已进入降解途径；在以上实验结果的基础上，本研究对S型CMS花粉育性的恢复机理进行了如下推测：在不育花粉和育性恢复的花粉中，orf77区域内均发生了终止编辑，即由RNA编辑产生了提前终止密码子。

The monotonic and cyclic shear tests of the interface between geotextile and gravel as well as geotextile drawing tests were conducted with the apparatus. The interface was found to exhibit strain-softening and obvious aeolotropic normal displacement which was affected by the normal stress.

剪切试验结果表明，粗粒土与土工布接触面出现了一定程度的应变软化，相对法向位移的变化受法向应力影响很大，并表现出异向性。

Of science and technology changing is a very complex process, look from the angle of engineering, it is basic research, application studies what study to development to change, it is science of fundamental science, technology to project technology change process; to look from economics angle, it is one is motivation with economic interest, the possibility from science and technology to economic feasibility change process; to look from philosophical angle, it is sex of cause and effect to purpose sex change, the uniqueness that is scientific principle is reached to technical diversity change a course manipulatively.

科学技术的转化是一个非常复杂的过程，从工程学的角度看，它是基础研究、应用研究向发展研究的转化，是基础自然科学、技术科学向工程应用科学的转化过程；从经济学角度看，是一个以经济利益为动力，从科学技术的可能性向经济可行性的转化过程；从哲学的角度看，是因果性向目的性的转化，是科学原理的唯一性向技术多样性及功利性的转化过程。

Based on theory and test, finally, the measurements which may reduce axial force are given, for example, strengthening the management of size and clearances in roll systems and maintenance of roll bearings, limiting rolling technological conditions, increasing the axial flexibility, releasing axial binding forces and establishing axial flexible lock mechanisms, etc.. So it provides the constructive suggestions for preventing from damage of roll bearings.

在理论分析和实验验证的基础上，分析了轧辊轴承的受力特点和破坏原因，提出了降低轴向力的对策，其中包括加强尺寸及间隙管理、限定工艺条件、加强轴承的维修与管理等&硬&性措施，以及增加辊系轴向柔度、施放约束、建立柔性锁紧机构等&软&性措施，为现场解决轴承损坏问题提供了建设性参考意见。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。