三十分之一 [
sān shí fēn zhī yī]
thirtieth
- 一弧秒的移动是一毫米的三十分之一。
One second of arc movement is one thirtieth of a millimetre. - 坡度平均约为三十分之一。
The slope averages about 1 in 30 - 但很难理解商人们比其他人快三十分之一秒去下订单对提高那些社会功能有何帮助。
But it's hard to see how traders who place their orders one-thirtieth of a second faster than anyone else do anything to improve that social function.
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