At every level of moisture content and dry density, thermal conductivity of MC is smaller than that of SC.

我想問(wèn)問(wèn)，為了簡(jiǎn)化句子，這個(gè)句子中的that of 可以省略嗎?

that of不適合省略。

另外smaller作表語(yǔ)說(shuō)明conductivity是不是合理？lower是不是更好些？