# Thread: To be orders of

1. Member
Join Date
Jan 2013
Posts
276

## To be orders of

Hi,

I want to know does the sentence below make any sense to you?

The heat coefficient is orders of magnitude lower than the corresponding region before the critical heat flux was exceeded, due mainly to the lower thermal conductivity of the vapour.

I just can't understand what means "is orders to"? and the rest of the sentence seems so complicated.

2. ## Re: To be orders of

Originally Posted by Sepmre
The heat coefficient is orders of magnitude lower than the corresponding region before the critical heat flux was exceeded, due mainly to the lower thermal conductivity of the vapour.
I just can't understand what means "is orders to of"? means and the rest of the sentence seems so complicated.
The heat coefficient is many times lower than the equivalent heat coefficient was before the critical heat flux was exceeded. This is mainly caused by the lower thermal conductivity of the vapour.

3. VIP Member
Join Date
Apr 2009
Posts
8,275

## Re: To be orders of

"Orders of magnitude" refers to whether or not the numbers are in the same range, represented by the same number of digits. If one is 7 and the other 3, they are both in the same order of magnitude. But if one is 7 and the other 35, then they are not. If one is 7 and the other 3467, then they are separated by several orders of magnitude.

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