in terms of和in term of

在科研写作中in terms of 常用

in terms of:
a.按照(依据,用...词句,用...来,通过) 
3.It is difficult to express it in terms of science.
要用科学的字眼来表达它是很困难的.
in term of:
就……而言 
1.In term of money,he's quite rich,but not in term of happiness.
就钱来说他很富有,但就幸福来说就不然了.