间变

Hexylresorcinol（4-HR）; fresh-cut lotus ; browning ; quality

4-己基间苯二酚；鲜切莲藕；褐变；贮藏品质

In the first part, the concepts of the completely normal spaces and strong completely normal spaces in L-topological spaces are defined, which are the generalization of the completely normal spaces in general topological spaces. They are some good properties such as hereditary, weakly homeomorphism invariant properties, good L-extension, but they arent producible in general.

第一部分的主要内容如下：第一部分这一部分是将一般拓扑学的完全正规分离性的概念推广到了L-拓扑空间，给出了L-拓扑空间的完全正规分离性和强完全正规分离性的定义并讨论了它们的若干性质，比如，它们都是可遗传的，弱同胚不变的，"Lowen意义下好的推广"等。

Coupling with the cell dehydration equation,the homogeneous nucleation temperature of intracellular solution has been calculated as a function of time.

提出了一种求解变组元体系成核温度的方法，并联合细胞脱水方程，研究了胞内溶液均相成核温度随时间的变化。

IBEX can remotely observe the direction of the local interstellar magnetic field and may observe whether it stays the same or changes over time.

苗可以远程观察星际磁场的方向，可以观察是否保持不变，或随时间而改变。

Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析、建立轨道摄动计算模型的基础上，首先采用基于轨道远、近地点特征对大量编目在册的空间碎片进行初步几何静态筛选，然后根据碎片与目标轨道面的相对位置特点把碎片分为异面与准共面两种情况以进行动态筛选，在筛选过程中考虑到预报时限长度和轨道摄动影响，引入了轨道摄动中具有积累效应的长期项以满足危险时间点的捕捉要求，利用了长期项摄动变化线性的特点导出了碎片与目标异面情况下各自过交线的时间序列成准等差数列的规律性和准共面情况下类似的规律性，从而显著地提高了前期轨道筛选的计算效率；最后对剩余危险碎片和目标飞行器利用SXP4轨道预报模型在前期轨道筛选的基础上以各个危险探测时间点为预报的时间起点，并根据预报计算结果，分析目标和碎片在该时间点的运动趋势是相互远离还是相互接近，推出预计最小相对距离发生时刻相对此刻的时间长度，得到其随时间变化的局部最小相对距离以及危险距离发生的时刻和相对速度，这是一个采用变时间步长、快速逼近最小相对距离的过程。

This article describes the conditions of production and application of middle and small-sized RE-Mg ductile iron ingot mold during the last three years, and gives main properties of these ingot molds mechanic properties at room and high temperatures, resistance to oxidation and thermal fatigue, critical phase transformation temperatures and coefficient of thermal expansion,etc.

本文介绍了三年来采用稀土镁球铁材质制造中、小型钢锭模的生产试制和使用情况。报导了此种钢锭模的主要性能(常温与高温机械性能、抗氧化与热疲劳性能、临界相变点与热膨胀系数等)和表示出机械性能与化学成分间相互关系的回归方程。

It is pointed out that bulging strain is consisted of not only instaneous elastic strain, but also creep strain which changes with time.

指出鼓肚变形不仅有瞬时弹性变形，而且还有随时间变化的蠕变变形。

And this method has been successfully implemented in the real time control system by using a specially devised calculation method with variable integration step.

并通过独特的变积分步长计算方法解决了传感器采样方式与变量积分方式间的矛盾，保证了ECU变量更新能与发动机工作同步，使闭环状态观察器和非线性油膜补偿器在实时控制系统中得以实现。

When the interconversion factors are studied, investor sentiment is considered to analyze the different effects on stock market and bond market, and individual and institutional investors have different impacts on the spillover effect.

特别是在研究互变因素时，考虑了投资者情绪这一主观因素对两市的波动影响，并且对不同类型投资者在不同市场的行为进行了深入对比研究：个人投资者缺乏理性，往往是市场剧烈波动的始作俑者；而机构投资者能在市场间采取合理的反向操作策略，间接表明他们在稳定市场发展、化解风险扩散中的作用。

In additional, the roughness and atomic interdiffusion between the layers will also cripple the GMR effect and application characteristics.

最后，界面粗糙度、层间原子扩散等微结构缺陷的存在对器件稳定性的影响也变得明显。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。