we are using blank because if we are not inserting anything in colorimeter and keeping it open then the light from the surrounding may affect it's absorbance causing damage
i think you should add them
Fill in the blank. "That is the (blank) thing I have ever seen!"
Would need to know what your referring to by the meaning "blank". Blank stare.
the blank of 7 = 1/7 blank=recipricol
M is 1000 times mm (meter and millimeter)