发信人: newthink (阿波罗), 信区: Abroad
标 题: 美国常用计量单位
发信站: 南京大学小百合站 (Fri Feb 8 10:50:01 2013)
Length
1 inch ≈ 2.5 cm
1 foot = 12 in ≈ 30cm
1 yard = 3 ft ≈ 0.9 m
1 mile ≈ 1.6 km
American football field = 100 yd ≈ 90 m
Area
1 acre ≈ 4000 m2
American football field = 100 yd * 160 ft (48.8m) = 5350 m2 = 1.32 acres
Volume
1 pint ≈ 500 mL
1 quart = 2 pt ≈ 1 L
1 gallon = 4 qt ≈ 4 L
1 barrel = 31.5 gal ≈ 120 L
= 31 gal for beer
= 40 gal for whiskey or kerosene
= 42 gal for petroleum (1 oil barrel)
1 drum = 55 gal
1 teaspoon ≈ 5 mL
1 tablespoon ≈ 15 mL
1 ounce ≈ 30 mL
1 cup ≈ 250 mL
Weight
1 ounce (oz) ≈ 30 g
1 pound (lb) = 16 oz ≈ 450 g
1 ton = 2000 lb ≈ 900 kg
Temperature
F ≈ C *2 + 30
C ≈ (F – 30) / 2
(0 ~ 40 °C)
36.5 °C = 97.7 °F
37.5 °C = 99.5 °F
25°C = 77 °F
Most values are rounded for easy memorizing. Dry volume and liquid volume don’
t differ much so I didn’t list them separately. For more information, please
refer to Wikipedia about United States customary units: http://en.wikipedia.
org/wiki/U.S._customary_units.
--
※ 来源:．南京大学小百合站 http://bbs.nju.edu.cn [FROM: 114.232.154.99]
标 题: 美国常用计量单位
发信站: 南京大学小百合站 (Fri Feb 8 10:50:01 2013)
Length
1 inch ≈ 2.5 cm
1 foot = 12 in ≈ 30cm
1 yard = 3 ft ≈ 0.9 m
1 mile ≈ 1.6 km
American football field = 100 yd ≈ 90 m
Area
1 acre ≈ 4000 m2
American football field = 100 yd * 160 ft (48.8m) = 5350 m2 = 1.32 acres
Volume
1 pint ≈ 500 mL
1 quart = 2 pt ≈ 1 L
1 gallon = 4 qt ≈ 4 L
1 barrel = 31.5 gal ≈ 120 L
= 31 gal for beer
= 40 gal for whiskey or kerosene
= 42 gal for petroleum (1 oil barrel)
1 drum = 55 gal
1 teaspoon ≈ 5 mL
1 tablespoon ≈ 15 mL
1 ounce ≈ 30 mL
1 cup ≈ 250 mL
Weight
1 ounce (oz) ≈ 30 g
1 pound (lb) = 16 oz ≈ 450 g
1 ton = 2000 lb ≈ 900 kg
Temperature
F ≈ C *2 + 30
C ≈ (F – 30) / 2
(0 ~ 40 °C)
36.5 °C = 97.7 °F
37.5 °C = 99.5 °F
25°C = 77 °F
Most values are rounded for easy memorizing. Dry volume and liquid volume don’
t differ much so I didn’t list them separately. For more information, please
refer to Wikipedia about United States customary units: http://en.wikipedia.
org/wiki/U.S._customary_units.
--
※ 来源:．南京大学小百合站 http://bbs.nju.edu.cn [FROM: 114.232.154.99]
No comments:
Post a Comment