机理

Multi-aim geochemistry agrology survey in deeply overcast areas serves to the evaluation of the agriculture, environment, mineral resources and study of the fundamental geology. In this paper, we discuss emphatically the restrict mechanism between the activation of mineral elements and their contents of CaCO3 and pH, and show the importance of the study of soil pH and CaCO3 for agriculture and environment protection.

深覆盖区多目标地球化学调查，旨在通过土壤地球化学测量，为农业、环境、矿产资源评价及基础地质研究服务，作者重点阐述了土壤pH值、 CaCO3含量与土壤矿质元素活化之间的制约机理，论述深覆盖区多目标地球化学调查要实现服务于农业、服务于生态环境保护的目标，就必须加强对土壤pH值及CaCO3含量调查研究。

Combining these two theories, we advance some advice about the usage of grinding machine and the active mechanism of aidant grinding dosage.

综合两种理论对助磨剂在磨矿过程中的作用机理，进而提出对助磨剂的使用及磨矿过程的几点建议。

This paper establishes a physical model Based on this technology; explains the mechanism and methods; Analyses revolve jet's kinetic characteristic; studies how revolve jet affects manually produced borehole wall's buildup; designs the hydraulic tool; analyzes the relation of waterpower between the tool and the aiguille.

本论文建立了基于该项技术的井下物理模型，并以流体力学为研究基础分析了该项技术防漏堵漏的机理和方法；通过对旋转射流的运动特性的分析，研究了射流对"人造井壁"形成的影响；设计了水力工具，对侧向水力工具与钻头的水力能量分配关系进行了研究。

The paper mainly regards western economic theory as guidelines, using the basic method that the theory combines with reality, systematically studies the relationship between Agricultural Industrial Organization and System of Agricultural Cooperation, emphatically describes the function of the Innovation of SAC during the optimization to AIO.

论文主要以西方经济学理论为指导，运用理论与实际相结合的基本方法，系统地研究了农业产业组织与农业合作制度的关系，着重论述农业合作制度创新对农业产业组织优化的作用机理。

Three methods are mainly used to control wind-blown sand hazard,on the basis of the understanding of the mechanisms of air flow and sandy bed.

在风沙防治中，根据气流与沙物质地表作用的机理来看，主要有三种途径。

In this paper ,the protection mechanism of air curtain on horizontal parallel flow area is analysed.

本文分析了气幕对水平层流洁净区的保护机理，通过对气幕区及被保护洁净区的流场及浓度场特性分析，提出了较合理的气幕结构参数，从理论上证明了该种形式的气幕具有良好的围挡效果。

In this paper, the investigation concerning the mechanism and numerical calculation of flow and heat transfer of the cold air curtain in an open display cabinet is introduced.

本文介绍了敞开式食品陈列柜的冷风幕流动及换热机理和数值计算方面的研究状况，并分析了陈列柜冷风幕研究过程中存在的问

The investigation status concerning the mechanism and numerical calculation of flow and heat transfer and mass exchange of the cold air curtain in the open display cabinet are introduced.

介绍了水平低温展示柜内冷风幕流动及热质交换机理和数值计算两方面的研究现状，并分析了研究过程中存在的问题及其进

This article has analysed the principle of the heat and mass transfer in air washer and deduced the relative equations between the different heat transfer coefficients from which the values of η_1,η_2 and X can bo known as related to each other.

本文探讨了喷水室中的热湿交换机理，导出了反映不同换热效率之间的关系式，从中可知，η_1，η_2和X值是相互有关联的。

Mechanism analysis and numerical simulation of air-breathing model for laser propulsion .

大气呼吸模式激光推进的机理分析及数值模拟。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。