I
• The dimethyl-amine group and the aldehyde group are in the 1 . 4 relationship to each other .
• Jupiter's atmosphere is hydrogen and helium in a three-to-one ratio .
II
• There are differences as to ( or concerning , or regarding , or as regards ) the time of drying ( or as far as the time of drying is concerned ).
• The term binding energy is sometimes used to describe the energy which must be ...
• The conditions for measurement must be optimized with reference ( or in respect , or with respect , or in regard , or with regard ) to ( or in respect of ) the choice of ...
• Now we can do the same for the set of even integers.