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Picometer
US
・
UK
A1 初級
n.
名詞
皮米
影片字幕
債券長度和債券能量｜AP化學｜可汗學院 (Bond length and bond energy | AP Chemistry | Khan Academy)
06:42
And just as a refresher of how small a
picometer
is,
a
picometer
is one trillionth of a meter.
B1 中級
