Now some compressors have used new environmentally friendly refrigerants such as R134a and R600a for Freon. Taking refrigeration as an example, the compressor sucks in the low-temperature and low-pressure Freon gas from the evaporator and compresses it into a high-tem...
The 'SAFT-VR', 'PC-SAFT' and 'CPA' columns indicate which fluids SAFT-EoS and CPA parameters are available for. You may have to scroll right to view the whole table. Fluid nameCAS NumberFluid identifyerSAFT-VRPC-SAFTCPA 1,1,1,2-Tetrafluoroethane 811-97-2 R134a 1,1,1-Trifluoro...
April Fool's Day is 48 hours long and you are called an 'April Gowk', which is another name for a cuckoo bird.The second day in Scotland's April Fool's is called Tally Day and is dedicated to pranks involving the buttocks.Tally Day's gift to posterior posterity is the still-hilarious...
Since no upgrade is required, MULTICOOL refrigerants are the perfect solution for any system that previously used gases such as CFC R12, HFC R134a, HCFC R22, R502, R11 and others. Because of this compatibility, it is easy for companies to move away from the harmful and destructive products...
Which of the following is true?___.答案为A项。年报(annualreport)是获得某公司经审计过的财务信息的最主要的渠道；通过媒体获得的信息对信用分析也是有用的；诸如标准普尔等机构作出的信用评级对借款银行来说有一定的参考价值。本题中只有A项正确，故选A项。
High-performance pumps of this class are available only from a limited number of manufacturers in the world. KUBOTA's product was selected because of the size of its impeller passage and operational efficiency that were deemed superior to competitors. Due to its outstanding performance, this ...
With regard to new environmental regulations and EU Directives, many of the agents currently being used (e.g. R134a, R404A, R407C and R410A) in their current composition, as a result of the global warming potential (CO2 equivalent) ascribed to them, will no longer be usable in the ...