weight in air and weight in vacuum

xxxtttxxx

weight in air and weight in vacuum

这两个术语有没有合适的中文对应呢？

xzsandsyl

只能帮你顶一下了

Navigation

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

相对质量
绝对质量

xueyinghome

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

xuehu122

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

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

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

chin_bingjun

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

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

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

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.