为...的前驱

Based on summarized and analyzed the existing problems of the solution for scheduling RTRPMT and TFT, the author constructs a new heuristic function which adequately takes predecessor and successor relation among tasks into account, targeting that the direct successor of current running task is to be given the earliest time to be run.

针对实时分布系统中大量的相关周期性多任务，在分析、总结了前人对此类任务的调度算法解决方案所存在的问题基础上，构造了一种新的启发函数，该启发函数充分考虑了任务之间的前驱、后继关系，以当前任务的直接后继具有最早开始执行时间为目标。

From the transform infrared spectroscopy and X-ray photoelectron spectroscopy spectra, the hydroxyl and ethoxyl groups of the silica sol drawn from partially hydrolysis and polycondensation between TEOS and MTES can react with PA6 precursor.

红外图谱和X射线光电子能谱分析结果显示，硅溶胶的羟基和未完全水解的烷氧基能够与PA6的前驱体发生杂化反应。X射线衍射结果显示，采用本实验方法制备出的PA6和疏水型PA6/SiO2有机无机杂化材均为α晶型，而DSC结果表明，PA6/SiO2有机无机杂化材料的熔点略高于PA6。

Super-fine K-doped Li2ZrO3 powders were synthesized via the citric acid-ethylene glycol complexing, with the nitrates of lithium, zirconyl and potassium as the materials. Then, the precursor of K-doped Li2ZrO3 and the K-doped Li2ZrO3 powders were characterized by means of TG-DSC, XRD and SEM. Moreover, the thermal decomposition of the gel and the formation of the tetragonal crystalline form were analyzed.

采用柠檬酸－乙二醇络合法，以硝酸锂、硝酸氧锆、硝酸钾为原料制备了掺钾Li2ZrO3超细晶体粉末，采用TG-DSC、XRD、SEM等方法对掺钾Li2ZrO3的前驱体及掺钾Li2ZrO3晶体粉末进行了表征，分析了凝胶的热分解变化过程和四方晶形结构的形成过程。

K-doped Li2ZrO3 super fine powder has been synthesized by citric acid-ethylene glycol sol-gel method using the nitrates of lithium, zirconyl, potassium as starting materials. The precursor of K-doped Li2ZrO3 and the powder of K-doped Li2ZrO3 have also been characterized by TG-DSC、XRD、SEM measurements. The decomposition of the gel and the formation of the tetragonal crystalline form were analyzed.

采用柠檬酸-乙二醇络合法，以硝酸锂、硝酸氧锆、硝酸钾为原料制备了掺钾Li2ZrO3超细晶体粉末，采用TG-DSC、XRD、SEM等手段对掺钾Li2ZrO3的前驱体及掺钾Li2ZrO3晶体粉末进行了表征，分析了凝胶的热分解变化过程和四方晶形结构的形成过程。

While for the solution without urea, no combustion reaction took place and a badly agglomerated precursor was formed.

而没有添加尿素的溶液中没有燃烧反应发生，合成的前驱物为比表面积低的块状团聚体。

Its precursor is Aurichalcite. Cu〓 reducted from the precursor exists the micro-crystal and ZnO provides large surface area for Cu〓.

作者认为：该催化剂的前驱体是绿铜锌矿，还原而成的Cu〓以微晶的形式存在，ZnO为Cu〓提供较大的表面积。

This paper has studied to make use of the electrolyzing method in both chambers that is divided by anion—exchanging membrance based on the past ways of nanoscale materials being invented , to produce the depositions of hydrate and hydrated oxide which are calcined to become the nanoscale oxides.

本文在借鉴以往较成熟的纳米材料制备方法的基础上，着重研究了利用以阴离子交换膜为隔膜两室电解的方法，在阴极室得到制备其纳米金属氧化物的氢氧化物或氧化物沉淀的前驱体，在高温焙烧得到其纳米金属氧化物。

Retrospecting his comprador career in the first half of his lifetime,we shall get to know that ZHENG has strong patriotic consciousness and that he is one of the pioneers of Chinese modernization who plays an indispensable role in propelling Chinese economic modernization.

透过贯穿其整个前半生的买办生涯，我们不会不得出这样的认识：一是郑观应具有强烈的爱国意识；二是他为中国近代化的前驱之一，推动步履维艰的中国经济近代化迈出了不可或缺的一步

The millimetersized tubular crystal selenium was first prepared. By studying the process of treating selenium in ethylenediamine, we proposed the mechanism of the preparation of selenides under solvothermal condition. The selenides came into being from the reaction of metal ions with Se〓, which was obtained by the amine attacking selenium. Moreover, a new precursor to prepare nanocrystalline selenides at room temperature was obtained. From this precursor, we have prepared nanocrystalline silver selenides, copper selenides, lead selenides and cadmium selenides nanorods.

首次报道了采用溶剂热处理的方法制备出厘米尺度的管状结构硒晶体；通过对硒粉在乙二胺中的溶剂热研究，初步探讨了以单质硒为硒源的溶剂热合成硒化物的反应机理应是硒受胺类的亲核进攻变成Se〓而进一步形成相应的硒化物；获得了合成硒化物纳米晶的前驱物，并在室温条件下合成了硒化银、硒化铜、硒化铅纳米晶和硒化镉纳米棒等。

Indium Tin Oxide nano-powder was prepared with a convenient solvent thermal method. A hydroxide precursor was first prepared from indium chloride and tin chloride by using ammonia as precipitating agent.

以氯化铟和氯化锡为原料，氨水为沉淀剂，先用化学沉淀法制备了前驱体，然后将该前驱体以乙二醇为溶剂在聚四氟乙烯内衬的反应釜中于低至190 ℃下反应，获得了铟锡氧化物纳米粉体。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失