The essence of qi theory lays in the Gong fu Thought instead of the establishment of the Benti itself. 橫渠“氣”學(xué)的要義不在于建立一種“氣”的本體論，而在于與之相關(guān)的工夫論。
The collocation between benti and biti can be in the same category and in the different category. 有標(biāo)記比況短語本體和比體的搭配可以在相同范疇之間進(jìn)行，也可以在不同范疇之間進(jìn)行。
Dugan R C, Megranghan M F, Benty H W. Electrical Power Systems Quality [M]. New York: McGraw-Hill,1996 董其國編;潘震東、沈鏡明主審.;電能質(zhì)量技術(shù)問答