誰能給我冷凍空調中的完整的基本單位換算 - 手錶
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By Regina
at 2012-10-29T00:00
at 2012-10-29T00:00
Table of Contents
誰能給我冷凍空調中的完整的各基本單位換算 例如:1卡等於多少...
因為學校要用的
因為學校要用的
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手錶
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By Queena
at 2012-10-30T21:36
at 2012-10-30T21:36
風量單位:1CMM(M3/min)=35.28CFM(ft3/min) 水量單位:1GPM(加侖/min)=3.785LPM(公升/min) 1CMM(CM3/min)= 1000LPM(公升/min)=264.2GPM(加侖/min) 流速單位:1M /S(MPS)= 3.28ft /s(FPS) 電功單位:1HP(馬力)=0.746KW
2012-10-30 23:58:53 補充:
溫度單位:
1℃(攝氏)=5/9×(℉-32) 1 ℉ (華氏)=9/5× ℃+32
→ 1△ ℉ =1.8(9/5) △ ℃水的冰點:0 ℃ ( 32 ℉ ) ;
水的沸點:100 ℃ ( 212 ℉ )
絕對溫度:
依理論在-273.16 ℃時,氣體體積為零,物體分子運動全部停止.
凱氏溫度0K=℃+273 藍氏溫度0R=℉+460
2012-10-30 23:59:02 補充:
長度單位:
1M= 3.28ft (呎) 1ft (呎)= 30.48cm =12吋
1in(“)(英吋)= 2.54cm = 25.4mm
1台尺=30.3公分=10台寸:1台寸=3.03公分 :1台分=0.303公分= 3.03mm
2012-10-30 23:59:30 補充:
面積單位:
1坪=3.3平方公尺=10塊天花板( 60CM * 60CM )面積 1M2= 10.75ft2
體積單位:
1M3= 1000L 1L = 1000cm3 1ft3 = 28.3L 1gal = 3.785L
壓力單位:
1atm(大氣壓力)=14.7psig= 1.033kg /cm2G =1.013bar
1kg/cm2=14.2psi= 14.2lb /in2 =28.9psia=1.994bar
1inAq=25.4mmAq : 1mmAq=9.8pa
絕對壓力=大氣壓力(1.033kg/cm2, 76c mHg)+錶壓力
全壓=機內阻力+靜外靜壓
2012-10-31 00:00:13 補充:
電功單位:
1HP(馬力)=0.746KW
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By Daniel
at 2012-11-02T05:02
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at 2012-11-02T14:02
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