A.错误
B.正确
第1题:
氟里昂冷凝器(换热器):它的作用是将高温气体氟里昂()。
冷凝液化
略
第2题:
36、在制冷机中十分重要的是节流过程,下列关于节流过程哪种是正确的? Throttling is very important in a refrigerator. Which of the following is correct about throttling?
A.氟里昂从大管子流向小管子; Freon flows from the big pipe to the small pipe;
B.氟里昂从小管子流向大管子; Freon flows from the smaller pipe to the larger pipe;
C.氟里昂从冷管子流向热管子; Freon flows from cold pipe to hot pipe;
D.氟里昂不流动; Freon does not flow;
第3题:
在制冷机中十分重要的是节流过程,下列关于节流过程哪种是正确的? Throttling is very important in a refrigerator. Which of the following is correct about throttling?
A.氟里昂从大管子流向小管子; Freon flows from the big pipe to the small pipe;
B.氟里昂从小管子流向大管子; Freon flows from the smaller pipe to the larger pipe;
C.氟里昂从冷管子流向热管子; Freon flows from cold pipe to hot pipe;
D.氟里昂不流动; Freon does not flow;
第4题:
在双级压缩制冷循环中,对于氟里昂类制冷剂如R22、R134a、R290、R502等,采用 ;对于R717制冷剂,采用 的双级压缩制冷循环。
第5题:
塑料袋装茶叶,价廉、无气味、透明、防潮没缺点,因此是最佳的。