膨胀

By the method of dilatometric change,combining with microscopic test and hardness measurement,different expanding curves of continuous cooling transformation were measured at different cooling rate,and CCT diagram was obtained by using DIL805A thermal expansion fast phase transition instrument.

利用膨胀法，结合金相法和硬度法，在DIL805A热膨胀快速相变仪上测定了该钢在不同冷速下连续冷却时的热膨胀曲线，获得了该钢的连续冷却转变曲线；研究了该钢连续冷却过程中奥氏体转变过程与组织变化。

The phase transition characteristic of non-equilibrium TiNi alloy deformed by hot forge was studied with dilatometry. It was found that there are two kinds of completely different expansion curve when the alloy samples heating and cooling.

用膨胀法考察研究了热锻变形非平衡状态TiNi合金的相变特征，结果表明：热锻变形态TiNi合金有两类截然不同的膨胀曲线，第Ⅰ类在降温时膨胀，对应B2→M相变。

An analytical model was presented to study the cloud expansion during near field regime, and the liquid fuel expanding velocity-radius relation and the liquid breakup model were given. A 2-dimensional axisymmetrical diphasic flow numerical simulation for cloud expansion during far-field regime was carried out, and the distribution parameters of fuel in cloud were given.

对近场阶段云雾的膨胀采用分析模型来研究，给出了这一阶段液体燃料膨胀的速度—半径关系及液体环的破碎规律；对远场阶段云雾的膨胀采用二维轴对称两相流的数值模拟来研究，得出了云雾中燃料的分布状态随时间的变化规律。

But it is at the stage of theoretic research in China The expandable sand screen technology is used for sand prevention in the downhole In fact, it is a series and intermesh axes slotting and the ar rangement of the slotting make the pipe string easy to ex pandable.

它是一种适用于井下防砂的膨胀筛管技术，膨胀防砂筛管实质上是具有一系列串联的、互相交错的轴向割缝的管子，割缝的布置使管柱更易于膨胀。

The decisive influencing factor of viscosity in carboxyl-methylation was cross-linking reaction. Carboxyl-methylation was the main influencing factor of solubility and swelling capacity in modification of high content amylose starch. The structure and gelatinization property of different amylose content were analyzed with an Olympus Vanox BHS-2 multi-function optic microscope, and the results were as follows. The structure of ordinary cornstarch was different from the high amylose; gelatinization temperature and pH value of starch were affected deeply by amylose content, but had little difference between the gelatinization of high content amylose starch contained 50% and 70% amylose; pH value had much more effect than temperature on the gelatinization of high content amylose cross-linked starch. Monochloroacetic acid consumption, alcohol concentration and pH value influenced the starch carboxyl-methylation. When alcohol concentration was 60%, pH value 10, monochloroacetic acid/starch mass ratio 55%, the carboxyl-methylation of high amylose cross-linked cornstarch had the best result. With the In-Vitro digestibility model and biodegradation experiment, the digestibility and biodegradability of high amylose cornstarch and its modified starch were detected.

采用Brabande粘度测定仪和Olympus Vanox BHS-2型多功能光学显微镜等分析手段对链淀粉含量50％和70％的高链玉米淀粉及其交联和交联羧甲基化淀粉的结构和性质进行了表征和分析，结果表明，普通玉米淀粉结构与含链淀粉50％和70％高链玉米淀粉结构不同；高链淀粉比普通淀粉难糊化，高链改性淀粉糊化受pH值影响较大，受温度影响较小；淀粉的冻融稳定性、透光率、溶解度、膨胀度和粘度受链淀粉的含量和改性的影响，但是，链淀粉含量超过50％时，则链淀粉含量对淀粉的膨胀度和溶解度影响不大；改性淀粉性质的影响因素中，影响粘度主要因素是交联反应，影响透明度、溶解度和膨胀度主要因素是羧甲基化改性；一氯乙酸用量、反应时乙醇浓度及碱性条件都会影响高链淀粉及其交联淀粉的羧甲基化改性效果，制备羧甲基化改性淀粉的最佳工艺是在pH值为10的60％的乙醇浓度介质中按一氯乙酸/淀粉质量比为55％进行取代反应。

Among many oter things,I Taking the machine rotation rate as a control quantity of the subcontrol circuit,a set of PID cascade control system was designed.

介绍连体膨胀压缩机的工作原理，并综合透平膨胀机和离心式压缩机的调节特点，结合连体膨胀压缩机的结构，采用压力反馈、进口节流的调节方式实现对系统恒压输出的控制，其中将机器的转速作为副控制回路的被控量，由此设计一套PID 串级控制系统。

At the same time, the cold and dry air has the effects of dehumidifying and ventilating.

利用井下作业所用高压空气作为膨胀工质，通过透平膨胀机等熵膨胀降温后送入独头掘进工作面，即可达到降温除湿的目的，又通过引入新风提高了空气含氧量，具有较好的局部降温通风效果，克服了单纯通风方法无法降温和一般机械制冷方法无法通风的缺点，有效解决深井平巷独头掘进工作面的局部高温热害问题。

A simplified method for prediction of, ground heaves in expansive soils based on consolidation tests is given.

以膨胀土地基变形量作为膨胀土地基的分类指标，对膨胀土地基进行了分类。

Being from the technique current development level and the usage of it, this paper systemically disuses quite a number of concernments of the technique, for which count much of make MgO, MgO cement and concrete, the thermal and mechanical parameter of MgO concrete, the soundness of the Micro-expansion MgO concrete and the MgO cement construction equipments.

本文从该技术目前的发展水平，从使用MgO微膨胀技术出发，对于该技术关系重大的MgO膨胀剂制备、MgO水泥、MgO混凝土、MgO混凝土热学和力学性能、微膨胀MgO混凝土的安定性问题、以及MgO混凝土施工设备做了系统论述。

In this paper, A new type of two-stage rotary vane expander with high expansion ratio for R410A refrigeration systems has been developed on the basis of the conventional rotary vane expanders.

在传统旋叶式膨胀机的基础上，开发了一种可用于 R410A 制冷空调系统、具有高膨胀比的新型两级旋叶式膨胀机。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。