Take gaining profit at Shanghai Future Goods Exchange Centre for example, investors gained profit from in-stock gold price at 22 Yuan/g on January 9th 2008 the first day of Shanghai 0806 contract future gold went on the market. Except financial dect 1.665 Yuan/g, 2% of open interest freeze consumption, different commissions 1.2 Yuan/g, investors could have opportunities of gaining profits only when material future goods price is less than the golden area illustrated in the above pictures on the first open day on the market. If investors could make sure future goods price expiration and the actual price shock is limited in a scale while the scale shock is limited in the golden area, the investment risks will greatly decrease. Syphonage theory deems that if investors could select a golden area whose shock scale is limited in the golden area and select a package whose profit aim shocks stay far from risk boundary. In most cases, to say that profit gaining exchange cannot get infinite profits as expected is not an exaggeration, due to different national gold exchange system. The result of profit gaining exchange is to limit the lever percentage of risk investors. In actual profit gaining process, investors should choose suitable type to operate.
实际运作时应主意国家黄金财政政策限制了某些类型套利获利空间，以在上海期货交易所套利为例，投资者在2008年1月9日上海黄金期货0806合约上市首日，利用和上海黄金交易所黄金现货价格22元/克的价差进行套利，除去财政扣减1.665元/克、开仓冻结资金利损2％、各项佣金手续费1.2元/克，如黄金期货上市首日套利为例，九五金和黄金期货0806品种在上海进行期现套利时，只有当实际期货价格小于上图期现套利示意图金色区域时，套利者才有机会获利，例如投资者确定未来期货价格到期时，实际价格波动范围在一定区间内，同时该区间波动幅度不会超出图中金色范围，则投资风险会大幅减小，虹吸理论认为投资者a尽量选取能创造较大范围金色区间，并且套利目标波动距离远离风险边界的套利组合进行套利，很多时候套利交易在有些国家黄金交易制度等因素影响下，并不能获得传说中无限的利润空间，这决非危然耸听，套利交易的结果等于是缩小了风险投机者的风险收益杠杆比例，在实际套利过程中，投资者应选择合适的品种进行操作。
Products for the caliper, micrometer, dial indicator, dial gauge, lever scale thickness measurement tools, etc., as well as precision projector, instrument measuring microscopes, video measuring instrument, the second element altimeter, three-coordinate measuring instrument of precision measuring instruments, etc. mainly used for scientific research units, teaching the field, aerospace, automobile, shipbuilding, electronics, metal, plastic and many other fields in nanotechnology today, represented by technological innovation, it is necessary to adapt to the ever-changing industry needs, constantly drawing and the use of advanced science and technology, high-precision measuring instruments for scientific research in manufacturing has played a role as a bridge has been all over the world the user's trust and support.
产品为卡尺、千分尺、百分表、千分表、杠杆表、厚薄表等测量工具以及精密投影仪、工具测量显微镜、影像量测仪、二次元高度仪、三坐标测量仪等系统精密测量仪器，主要用于科研单位、教学领域、航空航天、汽车、造船、电子、五金、塑料等许多领域，在今天以纳米技术为代表的技术革新，要适应千变万化的产业界的需求，不断的吸取和运用先进的科学技术，高精密测量仪器在为科研制造等方面起到了桥梁作用，得到了全世界各用户的信赖和支持。
Company business scope: Metric plug plug plug left teeth straight plug, such as Brandt Gauge Metric ring ring ring teeth left straight Brandt ring ring gauge, such as dedicated short taper gauge cone gauge Mohs gauge needle, such as three types of vernier caliper caliper caliper with standard digital calipers, such as depth micrometer caliper micrometer outside diameter micrometer inside diameter micrometer micron micrometer scale, such as lever-type dial indicator dial indicator inner diameter dial indicator digital display dial indicator, such as Square Block-type wide angle square-foot knife-edge knife-edge angle square feet omnipotent point of view, such as meter-type coordinate measuring machine single lever gear comparator block welding inspection regulations, such as foot and other workers?
本公司经营范围：塞规公制塞规左牙塞规直管塞规布氏塞规等环规公制环规左牙环规直管环规布氏环规等专用量规锥度量规短锥量规莫氏量规三针等卡尺类游标卡尺带标卡尺数显卡尺深度卡尺等千分尺外径千分尺内径千分尺内侧千分尺微米千分尺等量表类百分表杠杆百分表内径百分表数显百分表等角尺类宽座角尺刀口尺刀口角尺万能角度尺等量仪类单坐标测量仪杠杆齿轮比较仪焊接检验尺等块规及其他工？
The length of the main agents of the Company, mechanical testing instrumentation, including: Switzerland TRIMOS altimeter, measured Length of knife Miriam; Switzerland SYLVAC digital calipers, inside | outside diameter micrometer, dial gauge, lever scale high-precision table frame, sensors, digital controllers, pneumatic measuring instrument; British Bowers micrometer diameter, the standard gauge; Switzerland TESA measuring a full range of omnipotent; Switzerland Electronic Level Wyler, bubble-type level instrument, level measurement systems, electronic measuring dumping sensors, electronic Miriam perspective; Germany HELIOS Shaft Universal Detection System; American ANDREWS camshaft Detection System; British BATY projector, optical coordinate measuring machine; AFFRI Italy Rockwell, Brinell, Vickers, Rockwell surface, micro-Vickers hardness tester, omnipotent pull, pressure, torsion testing machine, standard hardness tester, standard hardness block; Switzerland Kunz verticality detector, detector Straightness; IBP engine block detector; ASMETO surface roughness tester; RPI precision turntable and so on.
本公司主要代理长度、力学检测仪器仪表，包括：瑞士TRIMOS测高仪、测长机、对刀仪；瑞士SYLVAC数显卡尺、内|外径千分尺、千分表、杠杆表、高精度表架、传感器、数显控制器、气动量仪；英国BOWERS内径千分尺、标准量具；瑞士TESA全系列万能量具；瑞士WYLER电子水平仪、气泡式水平仪、水平仪测量系统、电子测倾传感器、电子角度仪；德国HELIOS万能轴类检测系统；美国ANDREWS凸轮轴检测系统；英国BATY投影仪、光学三坐标测量机；意大利AFFRI洛氏、布氏、维氏、表面洛氏、显微维氏硬度计，万能拉、压、扭力材料试验机，标准硬度计，标准硬度块；瑞士KUNZ垂直度检测仪、直线度检测仪；IBP发动机缸体检测仪；ASMETO表面粗糙度检测仪；RPI精密转台等等。
Calculation on the balancing time of mechanical railway track scale lever system and Study on the error in its weighing in motion
机械轨道衡杠杆系平衡时间的计算及其动态称量误差的探讨
Accordingly, undertook improvement to measurement technique and unit of feet lens group, rear sight the design is staff guage of 0.02mm mobile vertical for the least scale division value, telescopic design is collimation binoculars, face of lens of feed rod lever is 1.2362m above to rear sight distance.
因此，对测量方法和尺镜组装置进行了改进，将标尺设计为最小分度值为0.02mm移动铅直标尺，望远镜设计为准直望远镜，光杠杆镜面到标尺距离为1.2362m以上。
POWER LEVER ANGLE, The angular scale on the main engine control for showing movement of the power lever.
油门杆角度，主发动机控制上用以指示油门杆运动的角刻度。
As a lever of national economy the finance should renew the modes of thought further and make the credit loan for consumption to be flexible and large in scale by analyzing the current market of consumption situation during pushing on blazing new trails for the consumptive credit loan.
做为国民经济杠杆的金融业，尤其是商业银行应进一步更新观念，分析当前消费市场形势，在积极推进消费信贷创新中把消费信贷做活做大。
The essential prerequisite for using lever scale is that its maker knew the principle well.
不等臂天平的出现，其前提条件是制造者对杠杆原理的掌握。
Comparison between the calculation results and that of actual tests shows that the balancing time of the lever system has art extreme effect on the measuring accuracy of the dynamic mechanical track scale.
同时与实际检测结果对照，说明杠杆系平衡时间对机械动态轨道衡的计量精度有极大影响。
Likert scale (always, often, sometime, never) is used, and evaluated on total lever of eight elements (very good, good, moderate, bad, very bad) in analysis. 4.
用Likert量化法分四个等级（总是，经常，有时，从不）对8个部分进行分析，并对反应性8个部分总体水平进行评价（很好，好，一般，差，很差）。