投资回收率

For water projects which mainly rely on government funding IRR is compared with the central bank discount rate.

对主要依赖于政府投资的水利项目，则将内部回收率与中央银行折现率进行比较。

For certain type of investment, the expected rate of return is relatively constant; therefore the price is determined under a defined investment environment.

对于同一类投资，它的投资回收率是相对稳定不变的，因而当投资环境确定时，价格也是明确的。

The company invests mount a horse the project of form a complete set of cooking of defer of 1 million T hydrogenation of 800 thousand T refines and 30 thousand T is sulfureous reclaim project, quality of farther promotion product, reclaim effectively the 2 oxidation sulfur in waste gas, have major economic benefits and social benefit; to invested many yuan 6000 to build two dry gas to make hydrogenous device, make waste gas reclaims rate achieved 95%, reduced the discharge capacity of waste gas substantially, reduce; of the cost that make hydrogen to be in greatly at the same time more than heat, beyond pressure, of more than gas used a respect integratedly to carry out 22 technical reformation, make enterprise ton the banner level that oily treatment specific power consumption reached industry of domestic person of the same trade.

公司投资上马了100万t延迟焦化的配套项目80万t加氢精制和3万t硫磺回收项目，将进一步提升产品质量，有效回收废气中的二氧化硫，具有重大的经济效益和社会效益；投资6000多万元建设了两套干气制氢装置，使废气回收率达到了95%，大幅度降低了废气的排放量，同时大大降低制氢成本；在余热、余压、余气的综合利用方面实施了22项技术改造，使企业吨油加工能耗达到了国内同行业的领先水平。

The order of biooxidation extent is: arsenopyrite＞pyrite＞tennantite＞realgar and orpiment Under the experimental conditions, biooxidation of arsenopyrite is a complex heterogeneous process, the rate of which is determined by both the chemical reactions between Fe〓 and arsenopyrite and the activity of bacteria.

作为处理这类矿石的一种有效方法，细菌氧化脱砷方法具有金银回收率高、投资费用较少和无环境污染等优点，近年来已在国外得到工业应用，现正引起国内冶金界的重视。

It can develop 5-10 times produclion rale than that lf the old asme equipment.

为老型同类设备提高生产率5-10倍，回收率能达到90%以上，具有投资小，回收效益高的节能设备。

The advantage of the product is separation process evenly,easily control,and feeding chromes adjustable high,high concentrate.recovery ratio high,less space,water saving,simplestructure,no motor,dealing amount large,fix easily,convenient operated,small inves etc.

本设备具有选别过程稳定、容易控制，给矿浓度允许变化范围大，富集比高、回收率高，占地面积小、耗水量少，结构简单，无需动力，处理量大，安装简易，操作方便，投资小见效快等优点。

Experts believe the project with the traditional lead-smelting technology, has the following characteristics: First, the smelting process to adopt internationally advanced level of oxygen blowing at the end of smelting - to restore the blast furnace method, the use of lead refining electrolysis ; Second, the use of sulfur dioxide gas double-absorption acid technology, the production of domestic water use of recycled water sewage treatment process; Third, the use of waste heat for power generation, waste to make full use of energy reduces energy consumption; Fourth, the high level of automation, low power consumption , Investment, raw materials adaptable, comprehensive recovery rate of high-quality products.

专家认为，该项目与传统炼铅工艺技术相比，具有以下特点：一是冶炼工艺采用具有国际先进水平的氧气底吹熔炼-鼓风炉还原法，铅精炼采用电解法；二是二氧化硫烟气采用两转两吸制酸工艺，生产生活用水采用循环水污水处理工艺；三是利用余热发电，充分利用废弃能源降低了能耗；四是自动化水平高、能耗低、投资省、对原材料适应性强、综合回收率高、产品质量好。

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。