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In this article, the aim we pray is to synthesize small-scale Cu2O with uniform morphologies by simple method, and then discuss the activities of photocatalysis of Cu2O by degradation of the methylene blue and methyl orange.

因此，许多研究者开始致力于开发可以利用可见光或太阳光来处理环境污染物的新型可见光响应型光催化剂的研究。

Article 12 The state shall, with respect to water resources, adopt a system that organizes the administration by watersheds as well as by administrative areas.

第十二条国家对水资源实行流域管理与行政区域管理相结合的管理体制。

Article 19 With approval by relevant departments under the Hainan Provincial Peoples Government, foreign businesses may explore and exploit mineral resources to Hainan Island under the principle of earning profits by rational exploitation in the form of joint equity or contractual venturers or ventures of sole investment.

第十九条经海南省人民政府有关部门批准，外商可按照有偿合理开采的原则，以合资经营、合作经营或独资经营方式，勘探开采海南岛的矿产资源。

Article 15 Where a project of which the total dumping volume of dredged stuff is less than 500,000 steres needs to use a temporary ocean dumping site, the specific demonstration may be carried out by a selection and demarcation technology entity on the basis of collecting the existing natural environmental and social and economic materials of the dumping site and the sea areas around, and a report on selection and demarcation may be directly drawn up by that entity.

第十五条疏浚物倾倒总量在50万立方米以下的工程项目需要使用临时性海洋倾倒区时，可由选划技术单位在收集倾倒区及其附近海域现有自然环境和社会经济资料的基础上开展专题论证，直接编制选划报告。

Article 37 Enterprises of transport of dangerous chemicals shall provide the training on relevant safety knowledge to their drivers, shipmen, managerial personnel of loading and unloading, and escorting personnel, the drivers, shipmen, managerial personnel of loading and unloading, and escorting personnel must know the safety knowledge of transportation of dangerous chemicals well, and shall pass the examinations made by the departments of communication of the people's governments at the level of city divided into districts of their locations (shipmen shall pass the examinations made by the bodies of maritime administration), and may take up their jobs and start operations only after obtaining the certificates of post.

第三十七条危险化学品运输企业，应当对其驾驶员、船员、装卸管理人员、押运人员进行有关安全知识培训；驾驶员、船员、装卸管理人员、押运人员必须掌握危险化学品运输的安全知识，并经所在地设区的市级人民政府交通部门考核合格（船员经海事管理机构考核合格），取得上岗资格证，方可上岗作业。

The article describes, by examples, the method of monitoring the stress in hoisting large equipment, and points out the conditions by actual monitor, under which a panel point can be reduced to a hinge.

通过实例论述了大型设备吊装中应力监测的方法，并由实测结果得出桁架点简化为铰的条件。

Fourth article payment for labor each month of end of the month provides the previous month the wages, the wages provide form for the cash direct provide, second party's wages uses by the piece time-rate wage system, by the piece hourly wage work norm the correlation stipulation execution which draws up according to the party of the first part.

第四条 劳动报酬每月月末发放上个月的工资，工资发放形式为现金直接发放，乙方的工资采用计件计时工资制，计件计时工资的劳动定额按照甲方制订的相关规定执行。

In this article, the OH radials produced by positive and bi-directional pulse corona discharge in a wire-plate reactor are studied by emission spectra technology I .

本文利用发射光谱技术研究了在正脉冲、双向窄脉冲两种放电情况下各种物理参数对线-板式电晕放电产生的OH自由基的影响。

This article outlines the progress of ancient Chinese lenses from the Pre-Qin Period to the Five Dynasties, and discusses mainly two arguments: First, the"yangsui" recorded and narrated in Lun Heng by Wang Chong of Eastern Han Dynasty may be a plano-convex glass lens; secondly, the"four mirrors" recorded and narrated in Tanzi Hua Shu by Tan Qiao of Southern Tang Dynasty may be a plano-convex lens, a biconvex lens, a transparent planeparallel plate and a concave-convex lens respectively, but what kind of tra...

本文概述了中国古代透镜从先秦到五代的发展进程，着重从古代文献和出土文物的研究出发，结合中国古代社会经济发展水平，论证了东汉王充《论衡》中记述的阳燧可能是玻璃平凸透镜；论证了南唐谭峭的《谭子化书》中记述的&四镜&可能是平凸透镜、双凸透镜、平光镜和凹凸透镜。作者认为《谭子化书》&四镜&段可能实际上是对中国古代透镜发展的阶段性总结。

Article 21 Members of the standing committee of local people's congresses at or above the county level, choices for chairmen and vice- chairmen of the people's congresses of townships, nationality townships or towns, governors and deputy governors, chairmen and vice-chairmen of autonomous regions, mayors and deputy mayors, heads and deputy heads of prefectures, heads and deputy heads of counties, districts, townships and towns, presidents of the People's Courts and chief procurators of the People's Procuratorates shall be nominated by the presidiums of the people's congresses at the corresponding levels or jointly nominated by deputies in accordance with the provisions of this Law.

第二十一条县级以上的地方各级人民代表大会常务委员会的组成人员，乡、民族乡、镇的人民代表大会主席、副主席，省长、副省长，自治区主席、副主席，市长、副市长，州长、副州长，县长、副县长，区长、副区长，乡长、副乡长，镇长、副镇长，人民法院院长，人民检察院检察长的人选，由本级人民代表大会主席团或者代表依照本法规定联合提名。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。