weight in air and weight in vacuum

xxxtttxxx · 发表于 2009-5-5 22:28

weight in air and weight in vacuum

这两个术语有没有合适的中文对应呢？

xzsandsyl · 发表于 2009-5-6 08:41

只能帮你顶一下了

Navigation · 发表于 2009-5-6 09:03

I don't know if weight in air refers to Net weight or 空气重量
and weight in vacuum means 真空重量
I'm not sure about the answer.

San.Kevin · 发表于 2009-5-6 09:05

相对质量
绝对质量

xueyinghome · 发表于 2009-5-8 12:53

what do you do to know that weight in air and vacuum？？？？

xuehu122 · 发表于 2009-5-8 13:18

原帖由 San.Kevin 于 2009-5-6 09:05 发表
相对质量
绝对质量

may be you are right.

xxxtttxxx · 发表于 2009-5-9 10:13

I am trying to translate a part of a book about the liquified gases handling.
that part mainly talks about liquified gases cargo measurement.

and there are definitions of weight-in-air and weight-in-vacuum.

weight-in-air means sth you weigh in the air, and it has buoyancy.
so weight-in-air is smaller than mass.
and weight-in-vacuum is just same as mass.

Navigation · 发表于 2009-5-11 07:54

Thanks for your reply.
I think it's a perfect answer.

chin_bingjun · 发表于 2009-5-11 17:48

I feel it could be called as " 空气重量”and “真空重量， which correspondes the english words very well.

additional explanation: (a copy from web)
油品以空气中的重量计量时，应考虑空气浮力的影响。将真空中的质量（M）换算到空气中的重量（m）。
以空气浮力修正值进行修正的计算公式为：
m=(ρ20-0.0011)•V20(1)
式中：0.0011——油品密度的空气浮力修正值（克/厘米3）。
以空气浮力修正系数进行修正的计算公式为：
m=ρ20•V20•F(2)
式中：F——空气浮力修正系数，其值根据油品的标准密度查GB/T 1885表ⅢB《石油真空中质量换算到空气中重量换算系数表》得出。

[ 本帖最后由 chin_bingjun 于 2009-5-11 17:50 编辑 ]

xxxtttxxx · 发表于 2009-5-17 22:42

the 20 you methoned in the formula means 20℃, I think。
and the standard you use is different from the book I translated,
its standard temperature is 15℃.

but if you translated it to"空气重量", I think it maybe not proper enough,
it also means the mass of the air.

chin_bingjun · 发表于 2009-5-21 17:58

I agree, it might be not so "accurate".
Or maybe, we can just call it " 空气中重量" and "真空中重量”.What do you think?

xxxtttxxx · 发表于 2009-6-14 22:34

yes, I think that's good, we do not have the exact name for these two english words in chinese.
but finally, I just put English words in the translation,
I think it is much easier for the people to understand it.

weight in air and weight in vacuum

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