四分的

A fourth-order compact finite difference alternating-direction-implicit algorithm is proposed for solving the unsteady-state Navier-Stokes equations of fluid flow and heat transfer using the streamfunction-vorticity formulation. Point-successive overtaxation iteration is used to achieve the steady solutions.

本文构造了求解二维非定常涡量流函数形式Navier-Stokes方程组的一种四阶紧致交错方向隐式差分算法，对包括能量方程在内的离散化方程组采用逐次超松驰迭代法求得稳定解，求解了二维非定常粘性不可压缩流体的流动与传热问题。

According to the characteristics that Trypanosome can produce different variations, 5 New Zealand rabbits were infected in sequence with a monoclonal strain of Trypanosome evansi isolated from Yunnan buffalo. 50 monoclonal strains were isolated and showed by indirect immune fluorescent test that the first parasitemia peak of variation in following 4 rabbits exist in 9 predominant variations of first rabbit. The 50 variations subordinate to 20 antigen types.

根据锥虫在兔体内可产生不同变异体的特性，将伊氏锥虫云南水牛单克隆株顺序感染五只新西兰大白兔，分离到 50 个单克隆群体，经间接免疫荧光实验证明：后四只兔子出现第一次虫血症高峰的变异体，均包含在第一只兔体内分离得到的 9个优势变异体之内；这 50 个变异体分属于 20 个抗原型，即共分离到 20 个优势变异体。

In this chapter, the very four classics of the composer are listed for detailed analysis and expositions, they are 《 Hotel 》、《 Montpartnasse 》、《 Le front comme un drapeau perdu 》 and 《 Les chemins de l'amour 》.Besides, there're some suggestions for singing after the analysis.

第三章普朗克经典歌曲的个案分析和演唱提示：列举了作曲家最为经典的四首艺术歌曲，分别是《酒店》、《蒙帕纳斯》、《前线好像失去了一面旗帜》、《爱情之路》进行了详细地分析和论述，并且做了演唱方面的提示。

The third chapter is about the case study of Poulenc's classics and the suggestions for singing. In this chapter, the very four classics of the composer are listed for detailed analysis and expositions, they are《Hotel》、《Montpartnasse》、《Le front comme un drapeau perdu》and《Les chemins de l'amour》.Besides, there're some suggestions for singing after the analysis.

第三章普朗克经典歌曲的个案分析和演唱提示：列举了作曲家最为经典的四首艺术歌曲，分别是《酒店》、《蒙帕纳斯》、《前线好像失去了一面旗帜》、《爱情之路》进行了详细地分析和论述，并且做了演唱方面的提示。

The three primary doses of pertussis are given to infants at two months, four months, and six months.

三种主要的百日咳注射剂分别是在婴儿两个月，四个月以及六个月的时候给小孩注射的。

Article 40 For commissioned investment management business, the Company shall disclose by category (such as social security fund, enterprise annuity and other items) the assets scale and proceeds of such business as well as the Company's income from such business and risks involved in such business for the reporting period.

第四十条对于受托投资管理业务，应分类别（如社保基金、企业年金，其他专项）披露报告期该受托投资管理业务的资产规模、资产收益情况、公司来源于此项业务的收入及承担的相应风险。

Article 40 For commissioned investment management business, the Company shall disclose by category (such as social security fund, enterprise annuity and other items) the assets scale and proceeds of such business as well as the Companys income from such business and risks involved in such business for the reporting period.

第四十条对于受托投资管理业务，应分类别（如社保基金、企业年金，其他专项）披露报告期该受托投资管理业务的资产规模、资产收益情况、公司来源于此项业务的收入及承担的相应风险。

Article 40 As regards commissioned investment management business, the Company shall make a disclosure by category (like social security fund, enterprise annuity and other special items) of the assets scale and proceeds of such business as well as the Company's income from such business and related risks took in such business during the reporting period.

第四十条对于受托投资管理业务，应分类别（如社保基金、企业年金，其他专项）披露报告期该受托投资管理业务的资产规模、资产收益情况、公司来源于此项业务的收入及承担的相应风险。

And home have water-based ink monochrome, two-color, three color, four-color printing machine slotted a total of 7 Units, sub-machine 4 Units, 10 Units beer machine, automatic glue machine 4 sets, automatic coating machine 1 Units, nails Machine 7 Units, playing Kok Airport 5 Units, 5 Units mounted plastic machine, computer engraving machine laser Units 1 and Units 1 proofer computer products such as corrugated paper manufacturing machinery, which makes the company the production of corrugated packaging products in quality, delivery and Other customers reported that the Treasury have been received: a long time, has been subject to many well-known multinational companies to develop trust and good reputation of SMEs.

并置有水性墨单色、双色、三色、四色开槽印刷机共7台、分纸机4台、啤机10台、自动粘胶机4台、自动涂胶机1台、钉机7台、打角机5台、裱胶机5台、电脑镭射雕刻机1台和电脑打样机1台等瓦楞纸品制造机械，这使公司生产瓦楞纸包装制成品在品质，交货期及其他报务均得到客户好评：长期以来，一直受到诸多知名跨国企业的信任和发展中小企业的良好的口碑。

In the second chapter, we introdcue the problem of optimal proportional reinsurance ratios and dividend payouts policies for an insurance company with both fixed and proporational transaction costs in a time-continuous financial market.

对模型的应用，我们也给出了经济学上的一些解释，并与已有结果做了比较。本文分四章，第一章介绍了分红优化问题的研究历史及现状。

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。