hfcs 中文意思是什麼
hfcs
解釋
可口可樂的實驗室開發出高糖玉米濃縮液-
The corn refining industy was estabished in 1848 in america. the world war stimulated the development of corn refining and the corn refiner got much more economic profits. the comprehensive utilization of corn was realized and a variety of modified starch were developed before 1950s in america. after 1960s, the corn refiners in america created lots of bioproducts from corn starch by the fermentation. first of all, the hfcs which has been a popular product at present was largely produced. moreover, many organic acids and sugar, alcohols were produced as chemical materials. the corn refiners in the america are focusing on developing new corn refining products which can take the place of petrol products
美國玉米加工業始建於1848年，第一、二次世界大戰刺激了玉米加工業的發展，並使美國玉米加工企業獲得了大量的經濟利益.本世紀50年代前，美國玉米加工業就已實現了綜合利用，並開發了多種變性澱粉. 60年代以後實現了從澱粉到生物技術產品的轉化.首先，玉米高果糖漿實現了工業化生產，並成為目前玉米加工業的主要產品.此外，以葡萄糖為原料，生產有機酸、醇等化工原料.目前，美國加工業正致力於開發替代石油製品的玉米深加工產品 -
However, its greenhouse warming potential ( gwp ) is relatively high among the newly developed hydroflourocarbons ( hfcs ), which seems to be an obstacle for the furtherance of the use of r - 134a, especially in european countries
然而，在新近發展的hfcs類物質中，它的gwp值相對較高，這就阻礙了它的進一步使用，特別是在歐洲國家。 -
Patents on removal of olefins in hcfcs and hfcs at home and abroad are gathered up and classified, principles and characteristics of every method are reviewed, the author also points out that adsorption method is an imporant research trend in refining technology of hcfcs and hfcs
摘要概括了國內外氫氯氟烴和氫氟烴中烯烴脫除方法的專利文獻，評述了各種方法的原理、特點，並指出吸附法是當前氫氯氟烴和氫氟烴精製技術的發展趨勢之一。 -
The peng robinson cubic equation of state ( pr eos ) is used to calculate thermodynamic properties of frequently used refrigerants ( r12, r22, r502 ) and prospective alternatives refrigerants ( r134a, r152a, r125 ) and mixed - refrigerants ? the result of using cfc and hfcs refrigerants is contrast to the result of mixed - refrigerants in ideal single - press circle at lower evaporating temperature
在單級和雙級兩種不同製冷循環下，研究了不同製冷工質在變蒸發溫度及變冷凝溫度的循環性能。本文採用狀態法? pr方程計算常用的製冷工質（ r12 、 r22 、 r502 ） 、有希望的替代物（ r134a 、 r152a 、 r125 ）和混合工質的熱力學性質。
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