概念作用的

This paper discusses the concept and nature of recasts , the roles they play in second language acquisition and their related theoretical background.

该文阐明了重铸的概念、性质、在语言习得中的作用以及与之相关的理论研究背景，并从重铸与接纳的关系、学习者个人因素、语境、目标语的选择、不同类型的重铸等方面分析了重铸在第二语言学习中有效性的影响因素，最后探讨了重铸对我国二语教学和学习的启发和意义。

Basing on what is mentioned abore, the authors examine on the institute's activities on education, technological research and industrial exhibition and show the role that the institute had played in the industrializational process in the nineteenth century Philadelphia.

在此基础上，将富兰克林学会史与费城工业化史这两个历史研究层面联系起来进行历史考察，就学会的产生，学会所进行的科技教育、技术研究以及展览会这三大类活动的基本内容和性质，学会在当时费城工业化进程中的地位和作用乃至工业革命的概念，陈述作者的看法。

Throwing range of the arm is small and movement of the arm"s turning over is relatively early; in the stage of the right leg"s supporting, the time of the right leg amortizing is longer, the range that the right knee amortizing is relatively large, assignment of the amortizing time and

建议：在交叉步结束右脚着地至标枪出手阶段，尽量缩短右腿单支撑的时间，进一步提高右腿的支撑能力，提高投掷臂的技术水平；在训练和比赛中要进一步提高身体各环节加速的能力和保持速度的能力；应加强对最后用力及其他概念的理解，这样对进一步认识和研究掷标枪运动有辅助作用。

The first part is the developing history and current situation of the freight forwarders of our country.

首先，论文第一章介绍了货运代理的概念和发展历史，指出货运代理的重要作用和我国货运代理企业的自身优势，之后提出货运代理行业的发展趋势，即往综合物流企业发展的趋势，初步点明我国货代业的发展方向。

The effect of subsoil kinetic parameters upon the asphalt pavement settlement is studied in order to draw a relation between the dynamic parameters and the accumulative plastic deformation of subsoils. Based on a half-filled and half-dug embankment, a kind of method, which may compute the critical differential settlement making asphalt pavement yielded, is drawn in order to analyze the influence of the asphalt pavement deformation due to the differential subgrade settlements.

研究了路基土不同的动力参数对路基变形的影响，得出路基土动力参数～路基土累积残余变形之间的定量关系；以半挖半填路基为例，提出一种用于分析由于交通荷载反复作用而使路基产生的差异沉降对路面结构影响的方法，通过对路面结构的变形分析提出了临界差异沉降概念。

It also introduces the translational symmetry and other basic symmetries of crystals, the 14 Bravais Lattices and 7 Crystal Systems, and Crystal Plane and Miller Index.

在平移对称性的基础上，引入倒格子的概念，讲授晶体内部物质微观运动的物理规律、以及倒格子对描述这些规律的作用――即波动性及对波的描述；如格波、金属电子论、能带理论、特别是能隙的起源。

Since that time, Boole's original conception has been extensively developed and refined by algebraists and logicians.

由于布尔代数，最初的概念逻辑学和二进制算术之间的内在联系，数，逻辑学和二进制算术之间的内在联系，使得布尔代数的理论在电子计算机的发展中起到举足轻重的作用。

In the first part of this thesis, it defines the concept of environmental evaluation, reviews the creation and development of environmental evaluation and the research present situation in China. It also accounts for that the environmental evaluation triers should study not only the research conclusion as the guide and basis of design and decision making, but also the evaluation pattern and method used in research.

本篇论文第一部分给出了环境评价的概念，简要地回顾了环境评价的产生、发展以及在我国的研究现状，说明对于环境评价研究者来说，不仅要看研究的结论对于设计和决策的引导和基础作用，更重要的是看该研究使用了什么评价模式、评价方法，这样才能更好的利用此方法，来解决不同类型环境的评价问题。

Product semantics is a part of semiology and plays an important role in the industrial design.

阐述工业设计和产品语义学的概念，产品语义学是符号学的一部分并在工业设计中起到重要的作用，说明了人对形态和色彩的观察具有一定的规律，视觉上的舒适与和谐是设计中的重要因素。

With consider of characteristic of indoor Pollution and influence of the health of human body by excessive pollutive factor value.under the foundation of environmental quality evaluation technique, apply the concept of the indoor air evalation of quality to pollute the comprehensive evaluation index of factor, reflect the influence of indoor air contaminant for the health of human body.

考虑到室内环境空气污染的特点和超标的污染因子值对人体健康的影响作用，在环境质量评价方法的基础上，应用室内空气综合质量评价的概念，以污染因子的综合评价指数反映室内空气污染物对人体健康的影响程度。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。