研究生英语口语课件.ppt

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1、Contents 123 4synthetic detergentIn 1958The development of detergentsoapThe 20th centuryplant ashgleditsia sinensisLong long agoNowMany kinds of detergent,uncounted The main components of detergent Surface active agentremoving stainsdissolvingImportant functional additivebleaching agentdefoaming age

2、ntsoftenerspiceThe components1.More concentration,more effective2.More clean if using mixture detergent3.More white,more clean4.Sprinkle the detergent directly on the furniture 1.More concentration,more effective Normally,it is most effective when the detergent is diluted to proper proportion.2.More

3、 clean if using mixture detergentl Mix the chlorine with acid detergent together,which may release chlorine gas.3.More white,more clean l fluorescent whitening agent is harmful to body skin and cause heavy liver burden.4.Sprinkle the detergent directly on the furnitureSprinkle the detergent directly

4、 on the furniture will reduce the effective and cause corrosion of furnitureThe potential harm of detergent1.Effects of detergent on health2.Effects of detergent on EnvironmentEffects of detergent on health Dtergent contain stimulating chemicals,such as foaming agent,acid,alkali,and so on.1.Skin dam

5、age2.Impaired immune function3.Increased risk of leukemia Effects of detergent on the environment Why had the lake and river turned green,muddy,and smelled bad?The criminal is detergent.EntrophicationNatural detergentPublic facilities,cleaning Public facilities,cleaning Some of Natural detergent rec

6、ommendedeggSalt solution vinegarrice waterlemonThe use of natural detergenteggLeather maintenanceSalt solution Clear juice stains vinegarTile cleaningrice waterWash handslemonWash Water dispenserProspect-Demand-Bin Jiang Demand of high standard of living Demand of health Demand of environmental prot

7、ection As our standards of life skyrocket,so do our expectationsPeoples increasing emphasis on the health Peoples awareness of environmental protection is higher Prospect-data-Bin Jiang The average annual growth rate of 20%!Erveryone will consume 34kg detergent in 2017.Prospect-direction-Bin Jiang E

8、nvironmental friendlinessRawmateriall Easy biodegradationl non-toxic;Producel have recycling value;Detergentl easy to handlel reduce waste emissionshigh-efficiencylow-costProspect-technology-Bin Jiang ProfessionalizationWith little or no waterEnzyme-Microbial DetergentSave water Using microbial cell

9、s to wash dirt and decompose into nontoxic and harmless water-soluble.Using a special formula for tableware,floor,doors and windows,jewelry,cars,etcPublic facilities,cleaning Public facilities,cleaning ConclutionDetergent agent for the benefit of mankind,but also need to prevent polluting the environment!

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