物理过程

The plastic go down the hopper smoothly and is gripped by the thread of the screw. It is forced to go toward the direction of the gear end along with the rotation of the screw. A mechanical transferring process is formed. During the running of the plastic from the feed port to gear end, a high pressure is formed in the process of plastic curing due to the gradual decreasing of the thread depth and the resistance of filter gauze, splitter plate and gear end. The high pressure helps to press the raw material and improve its heat conductivity performance and the quick melting of the plastic, at the same time, the gradual increasing pressure can help the gas which is among material particles exhausted from the air holes.

在压力升高的同时，塑料一方面被外部加热，另一方面塑料本身在压缩、剪切、搅拌的运动过程中，由于内磨擦力也产生了大量的热，在外力和内力的联合作用下，塑料温度逐渐增高，其物理状态也经历了玻璃态--高弹态--粘流态的变化，一般地说来，在加料段中主要是玻璃态，在螺杆螺纹逐渐减少的中间部分压缩段中，物料主要处于高弹状态，同时也逐渐的熔融，而物料到压缩段后部和化段作用处于粘流态了，这时我们称塑料已完全塑化了，由螺杆推力作用将塑化的塑料定压定量的从机头中挤出。

Because of the strong turbulence and atomizing during mold filling process, a two-phase turbulence model was developed to simulate fluid flow of die casting.

由于压铸充型过程具有强紊流和雾化现象，作者采用了紊流一两相流模型，使计算模型能更接近充型的实际物理状态。

The calculation shows different temperature dependence of physical observables at different freeze-out density.

计算发现在不同的冻结密度下，129Xe破裂过程的物理观测量呈现了不同的温度相关性。

It has discussed the sort of the friction between the belt and the wheel, and how the work of the friction affects the energy and the ability of mechanical transmission while it is working.

摩擦力做不做功？所做的功对传动过程中的能量有何影响？如何建立皮带传动的力学关系？这些都是学生在物理学习中常遇到的问题。

In order to improve its performance, a finite element technology was employed for friction disk coupling heat stress. Based on the established physical model of heat conduction in engaging process of clutch , the finite elements were analyzed to acquire the temperature distribution and heat distribution of friction disk under thermal loads.

为了提高离合器的工作性能，采用有限元技术对离合器摩擦片进行了热应力耦合分析，基于所建立的离合器接合过程中的热传导物理模型，进行了有限元分析，并得到了热载荷下摩擦片的温度分布以及应力分布情况。

Therefore, a physical model to correct the PL quenching efficiency was developed, which was affected by the fullerene absorption.

给出了富勒烯吸收作用对荧光猝灭效率影响的校正方法、物理模型和数学推导过程。

In this paper, grape seed extract of the physical and chemical properties and physiological functions, the extraction process, the prospects for development are reviewed.

在本文中，葡萄籽提取物的物理和化学特性和生理功能，萃取过程中，发展前景评述。

The theory of the two-stage propulsion technology, the process of the two-stage launching technology and the device in the gun chamber are discussed, and also the physics model in the chamber is raised in this paper.

文中介绍了二次发射技术的原理、发射过程和膛内装置，建立了火炮膛内装药物理模型。

Besides the contents mentioned above, the research includes the following contents: 1. Convex refractive microlens array are successfully fabricated by the method composed of heat-forming photoresist and Ar ion beam milling, on various substrate, such as Si, SiO〓 et al.. And a variety of critical experimental fabrication parameters are obtained.

讨论了热熔成形工艺中的临界效应，并提出了新颖、自洽的物理诠释，引进了临界成形系数和临界接触角的概念，并推导出它们之间简洁的函数关系式，此关系式揭示了热熔前后微图形特征参数间的内在联系，为定量研究热熔成形过程提供了新的思路。

The formation of high-grade ore body has undergone a complex process.

在复杂的成矿过程中，矿床所形成的地质构造、地球物理及地球化学等特征构成清晰的找矿要素，从不同尺度和有效性的要素系统，构建出以&中基性钙碱性火山碎屑岩+高极化高重力+多级复杂褶皱构造+硅化-绿泥石化+孔雀石化&为核心的矿床综合找矿模型。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。