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Result Obtained formulas of curved surface of second degree simplified with some conclusion related of polynomials factor decomposition.

结果 得出了二次曲面简化的公式和某些多项式因式分解的相关结论。

Shield machine ; Cutterhead ; Large deformation ; Fluid-solid-interaction ; Parallel computing ; Domain decomposition

盾构机；刀盘；大变形；流固耦合；并行计算；区域分解

Melamine isa trimer Cyanamide, from it made-up of resin, thermal decomposition will release a lot of nitrogen, so it can be used as fire retardant.

三聚氰胺是氨基氰的三聚体，由它制成的树脂加热分解时会释放出大量氮气，因此可用作阻燃剂。

The gasification efficiency increased and the molar fraction of H2 decreased with an increase in the reaction temperature. The decomposition of PVA was more complete at higher temperatures. At 24 MPa, 500℃ and 120 s, the TOC remove rate, the carbon gasification rate and the hydrogen gasification rate were up to 71.46%, 67.97% and 157.24% respectively. A change in the residence time had no significant effect on the molar fraction of gas production but an increase in the residence time could enhance the gasification efficiency of PVA. It was found that the intermediates were mainly alkane, cycloparaffin, aromatic hydrocarbons, and low-molecular weight acids. It was supposed that PVA was degraded into small molecules through breaking of C-C bonds. Parts of the molecules were converted into H2, CO, CH4 and CO2 while some was converted into aromatic hydrocarbons.

过程探索发现：反应温度的升高能提高PVA气化效率，但气体产物中H2的含量随反应温度的升高有所下降；随着反应温度的升高，PVA分解趋于彻底，在压力24MPa、温度500℃、停留时间120s的条件下，TOC去除率、有机碳气化率和氢气化率分别达到71.46%，67.97%和157.24%；停留时间的变化对气体产物含量没有明显的影响，但延长停留时间能提高PVA的气化效率；PVA气化反应中间产物主要为链状烷烃、环烷烃、芳香烃及小分子酸，根据中间产物出现的顺序推测PVA的降解为由C-C键断裂形成小分子物质，这些小分子物质一部分转化为H2，CO，CH4和CO2，一部分形成难降解的芳香族化合物。

The results showed that cyclopentane could reduce the equilibrium pressures and critical decomposition temperature of HFC-134a gas hydrate.

研究表明：环戊烷可以降低HFC-134a水合物的平衡压力和临界分解温度。

Two genetic types of dawsonite, namely inorganic and organic are divided in response to origin of carbon dioxide. Inorganic genesis includes magmatic origin and carbonate decomposition origin.

CO2气的来源决定了片钠铝石具有无机和有机两大成因类型，其中，无机成因包括岩浆成因和碳酸盐热解成因。

The V2O5 fines is prepared by static decomposition from APV and the relations of the deamination, the valence of vanadium, and the content of major impurities such as S, Si, K, Na to the temperature and time are studied in this experiment.

在实验室条件下，通过APV静态热解制备了粉状五氧化二钒，研究了静态中温条件下氨的脱除、钒的价态变化，以及硫、硅、钾、钠等主要杂质在产物中的含量与温度及时间的关系。

The dechlorination result of thermal decomposition fundamental experiment for PVC under the condition of N 2 atmosphere heating at certain temperature was described.

作者对含氯废塑料的热解法脱氯进行了实验室基础研究。

From the equilibra configures obtained during simulating, it was suggested that there is mainly chaintype structure in the LiBO〓 melt, and the dominative variations during the process of being fused may be the decomposition of the long chains, then large member of nonbridge oxygen was come into being in the shorter chains resulting from the decommission.

模拟得到的二硼酸锂熔体中，三配位和四配位的硼氧结构共存，其间相互结合成环状结构；而在偏硼酸锂熔体中没有发现四配位构型，由平衡构像分析，该熔体中可能以链式结构为主，熔化过程中主要的结构变化是长链的分解，分解产生的短链结构产生了大量非桥氧。

Describe the pollution simulation model; propose the decomposition principle which is independence between atom model and application, convenience of dynamic composition according to structure of pollution spreading simulation service. The basic idea is that decompensate the entire model, package the every sub model into grid service and deploy it into grid node.

从海上溢漏污染扩散模拟模型体系的构成出发，首先进行污染模拟模型的描述，提出了基本原子模型与实际应用的无关性、动态组合的方便性的模型体系分解原则，以及具体实现的思路；将整个海上溢漏污染扩散模拟模型体系进行分解，进行网格化封装与部署，形成独立的网格服务。

You'll be in trouble it you don't watch out .

如果你不注意，你会有麻烦的。

Shaped like a biconvex lens.Of, relating to, or having the form of a hyperbola.

双曲线的属于双曲线的，与之有关的，或有双曲线形状的