非主要的

But current research work is mainly based on the sandstones microscopic anisotropism and the macroscopic anisotropism.

而当前对砂体的研究工作主要集中在对砂体的微观非均质性和宏观非均质性的研究上。

In chapter four,at first,we investigate classification theory of the positive homogeneous p-Laplacian equation ,the main method is Prufer's transformation,and then we discuss the nontrivial solution for associated nonhomogeneous equation by making use of Leray-Schauder degree.

接着研究了非齐次方程的可解性。在第四章中，我们首先是建立了正齐次p-Laplacian 方程的分类理论，主要利用Prufer 变换。再应用Leray-Schauder 度理论证明非齐次方程的可解性。

The nonmetal resources mainly distribute in North Mountain of Gaotai County, among them, 460,380,000 tons of nonmetal mines are availabile to production of industrial silicon , the silicon ore (including: quartzite, quartz sandstone and gangue) has high-grade of 98.67-99.04%, which provides rich raw materials for the production of monocrystal silicon and spathic silicon .

建设条件：高台县境内非金属矿资源主要分布在北山等地，其中可用来制作工业硅的非金属矿资源总储量就达到46038万吨，硅石(包括：石英岩、石英砂岩和脉石英)品位在98.67-99.04%之间，发展单晶硅、多晶硅产品提供了较好的条件。

Due to food pressure, grain product in the western Jilin Province will be enhanced in the near future. Farmland areas in the area will be decreased slowly in the near future, but with the technique development of irrigation establishment, paddy areas and utilization amount of fertilizer and pesticides will be increased rapidly. So, the NPS pollution from farmland will be more serious. The main lakes in the areas such as Moon Lake and Qagan Lake have been polluted by N and P, and the content of salt in the Nenjiang River has been increasing since last 30 years. All of these show that the negative effects of NPS pollution in the area have been serious and should not be neglected by the scientific research and corresponding government management. To deal with the contradiction of agriculture development and water pollution, the trend of increasing paddy area and using amount of fertilizer, pesticide and herbcide in the western Jilin Province should be controlled. Also, the drainage of return flow from paddy should be controlled and return flow should be disposed with ecotechniques by use of the large areas of lakes and mires in the area. Through these measures, the quality of surface water could be protected and the degeneration of ecoenvironment in the area could be contained.

我国由于粮食压力，未来吉林西部的粮食生产还将进一步加强，随着种植业结构的调整，垦殖率会略有下降，但随灌溉设施的建设与完善，水田面积将进一步扩大，化肥、农药的用量还将快速增加，农业活动引起的非点源污染将更加突出，而研究区的主要湖泊月亮湖、查干湖目前已达中等富营氧化水平，嫩江水质的咸化趋势明显，因此农田非点源污染物的流失及其内流区外流化面积的增加对地表水体富营养化、咸化的作用愈来愈明显，农田非点源对地表水水质的影响已不容忽视，应引起社会的关注，为协调农业发展与水污染这一矛盾，吉林西部应遏制化肥、农药施用量增长过快和水田过度开发的势头，控制洗盐回归水的排放量，利用区内广泛分布的大量泡沼对农田径流和回归水进行生态处理，既保护了地表水的水质，又有利于生态环境的改善。

Award of the Air Medal is primarily intended to recognize those personnel who are on current crew member or non-crew member flying status which requires them to participate in aerial flight on a regular and frequent basis in the performance of their primary duties.

在空中奖章主要目的是确认这些人员目前谁机组成员或非飞行状态，要求他们在空中飞行参与在其主要职责定期和经常船员的。

The company is mainly engaged in high quality HHEQUIP and ACTORN series auto testing facility, including: fuel,oil, transmisson pressure tester ,diagrostic multimeter,oscilloscope,timing light,Vacuum pump,battery tester,compression tester,vacuum/pressure gauge,digital tire pressure gauge."Profession,Innovation,Factualism,Credit" is our service object.

公司主要经营高品质的HHEQUIP及ACTRON系列汽车检测设备，产品主要包括：燃油、机油、自动变速箱油压表，高性能汽车专业用万用表、示波器，各种点火正时灯，手动真空泵，放电式和非放电式电瓶测试仪，汽油、柴油车汽缸压力表及汽缸漏气量测量仪，真空/压力表，数显轮胎气压计、充气机等等。

The reasons for using E.coli system to express HCV non-structure proteins are as follow:(1) Hepatitis C virus infections are serious in China. Using anti-HCV screening assay to control the quality of blood is the main measure of preventing the transmission of HCV.

本研究利用大肠杆菌系统表达丙型肝炎病毒非结构蛋白主要是基于以下考虑：(1)丙型肝炎在我国流行严重，利用HCV检测试剂控制血源质量是现阶段的主要预防措施。

Remaining oil mainly forms under the condition of multi-pore network, which distributes primarily as oil droplet, oil silk, detached island.

微观影响因素主要来自孔隙结构的非均质性、原油性质和注水压差，剩余油主要是在多孔隙网络体系条件下形成，其形态多以油珠、油丝、小油块和孤岛状分布。

Its main production environment testing, the mechanical material testing equipment, main products have Standard / Programmable constant temperature and humidity machine, walk-in constant temperature and humidity room, the aging chamber, hot and cold impact testing machines, vibration test machine, drop test machine, compression tension tester, salt spray test machine, ultraviolet radiation, rain test chamber, sand and dust and all kinds of oven chamber, but also according to customer demand for design and production of non-standard environmental testing equipment and various types of large-scale trial into the climate Room.

其主要生产环境试验、力学材料试验设备，主要产品有标准型/可程序恒温恒湿机、步入式恒温恒湿室、老化试验箱、冷热冲击试验机、振动试验机、跌落试验机、压拉力试验机、盐雾试验机、紫外光照、淋雨试验箱、砂尘试验箱及各类干燥箱，还可根据客户的需求设计生产非标环境试验设备及各类大型步入气候试验室。

A bar code symbol is the reading by the computer, this requires a very high business card printing and membership card production quality, the main factors have business card printing and membership card making methods (divided into contact business card printing and membership card making and non-contact business card printing and membership card making), the business card printing and membership card (with inkjet cards and membership cards, and photo-engraving cards and membership card production, thermal induction business card printing and membership card production, Business card printing business card printing and membership card making, etc.), Business card printing and membership card production locations, with live business card printing and membership card making and off-site business card printing and membership card making, etc.

条形码符号是由计算机识读的，这就要求其具有很高的制卡和会员卡制作质量，其主要影响因素有制卡和会员卡制作方法（分为接触制卡和会员卡制作与非接触制卡和会员卡制作）、制卡和会员卡制作设备（有喷墨制卡和会员卡制作、光刻制卡和会员卡制作、热感应制卡和会员卡制作、制卡制卡和会员卡制作等）、制卡和会员卡制作地点（有现场制卡和会员卡制作与非现场制卡和会员卡制作）等。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐