Learn English – Short phrase for “complete tasks quicker”

"Please correct" is correct, given that we did receive a value (the "0 kg/hour" shown in parentheses). We know that 0 is not right, so we want it fixed.

Either phrase could be used, but it depends on what the sentence intends to convey.

If they could have included the value but did not, then "please specify" would be appropriate to say "we would like this value, so please give it to us."

However, if they were supposed to include the value but did not, then "please correct" would be appropriate to say "you made an error, please fix it."

One phrase's connotation is "please give us some more information," while the other phrase's connotation is "please do what you should have done."

Given the business scenario and my assumption that the mass flow rate is important in this issue, they should have included it- justifying the phrase "please correct."

There's a similar expression in english - to hang your head (in shame). It has very much the same meaning as the expressions you mention.

Hang one's head: let one's head fall forward (e.g., when ashamed)

For example:

• When I was caught cheating in the exam, I hung my head in shame.

• Athletes caught taking drugs should hang their heads in shame.

• The defendant hung his head in shame.