四部分的

The forth part presents the experiments on fire area resistance and retroversion of fire smoke by using integrative fire simulation system of mine laneway network, with the results compared with the simulative numerical value, and the part also brings forward a new conception named fire area resistance which reflects character of fire resistance of mine laneway network. A general dimensionless calculation formula is deduced which presents the rule of smoke retroversion distance when fire occurs.

第四部分运用井巷网络火灾综合模拟实验系统进行了火区阻力和巷道火灾烟流滚退的实验研究，并与数值模拟结果进行了对比，提出了反映井巷网络火灾阻力特性的火区阻力新概念，推导出巷道火灾时期表征烟流滚退距离变化规律的通用无因次计算公式。

In the latter part,we choose production of USA,Brazil and Argentina and production cost as explanatory variables,domestic import as explained variable,to establish panel model,and does root of unity and Granger causality test,we found that domestic import,production of three countries and planting cost have the relationships of long balances.

在第四章的后半部分，我们选。。。更多取了美国、巴西、阿根廷这三个国家的大豆产量与生产成本作为解释变量，中国大豆进口量作为被解释变量，建立了面板模型，对模型进行单位根，格兰杰等一系列检验，发现中国大豆进口量与这三国的大豆产量与种植成本具有长期均衡关系。

The final part of the thesis was a summary. A conclusion of the thesis and a self-comment on my work as a PhD candidate have been made, and expectation about the further works has been addressed.

第四部分是本论文的总结，在对论文的工作进行归纳和自我评价之后，还对进一步的工作进行了展望。

The last part of the article is the self-reflection and self-examination about the problems occurred in teaching.

第四部分是实践中的一些体会和思考，反思实践中遇到的问题，总结了体验式教学中的一些注意事项等。

The fourth part of this paper specifies the transformation direction of processing trade.

论文的第四部分指明了加工贸易转型升级的方向，提出了促进我国加工贸易转型升级的对策建议。

Combined with the financial futures theory , accounting of corporation engaged in IRFs is further discussed .And four kinds of IRFs transaction including speculation , spread , arbitrage and hedge are studied in detail. Accounting of arbitrage and accounting of spread , which are often ignored by most research on the derivative financial instruments accounting , are also studied .

对利率期货投资企业会计，在现有衍生金融工具会计的研究中，大多对套利交易、套购交易会计问题采取存而不论的态度，本文按照交易方式将利率期货交易进一步分为利率期货纯粹投机交易、套利交易、套购交易和套期保值交易四部分进行了尝试性的讨论。

Aiming at the above problems, thefourth section illustrates the feasibility of establishing the statute book of law explanation in order to perfect the explanatory system of the administrative law according to reasonable mechanism of administrative explanation and appropriate rules.

然后在第四部分针对上述问题，阐述了通过合理的行政法解释机制，适当的行政法解释规则，建立法律解释法典完普行政法解释制度的可行性。

In view of the condition of present commodity tax and income tax, I pose the specific suggestions on valued-added tax, consumption tax, enterprises' income tax and individual's income tax.

第四部分，我国税制结构现状及优化程度评价和优化我国税制结构的设想，结合我国当前的国情，参考国际上的普遍做法，提出若干改革设想。

The fourth chapter is to discuss transplanting this system into China, which is key point of this thesis.

文章的第四部分是关于浮动担保制度在中国移植的探讨，这也是本文的重点所在。

As a result, researches in credit analysis and management have become the most important tusks in current time.

本文在结构上采用在纵向上逐步渐进在横向上逐步展开的方式，主要分为四部分：首先从信用入手，简要介绍信用的概念、发展状况以及现代信用的发展特征。

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。