phymath999
Wednesday, October 2, 2013
先说老大和老二,热量单位大卡是国内俗称,国际称千卡,1千卡=4187焦耳,约等于13亿电子伏特
先说老大和老二,热量单位大卡是国内俗称,国际称千卡,1千卡=4187焦耳,约等于13亿
电子伏特
老大张焦耳,老二张伏特,老三张安培,老四张瓦特
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment