essential difference

基本解释

But there is an essential difference.
但有一个根本区别。
This essential difference is the primary factor in determining which technology to use.
这种本质上的差别是决定使用哪种技术的主要因素。
That, Professor Cusumano added, was the essential difference in the paths of Microsoft and Apple, the early leader in personal computing.
卡斯马诺教授进一步分析了微软和苹果在带领个人电脑产业发展初期本质性的区别。

Before condemning such a move by the Congress, I believe one should understand the essential difference between an investor and a speculator.
FORBES: Briefing Book: A. Michael Lipper
The essential difference between the two is that traders take title — and often delivery — of their purchases, whereas brokers merely bring buyer and seller together for a small nick.
FORBES: Shadow Market Keeps Computer Components Flowing
Heeding Livni's unwise, defeatist counsel, Olmert postponed the essential ground offensive in south Lebanon until it was too late to make a difference and instead opted for a negotiated cease-fire.
CENTERFORSECURITYPOLICY: Condi's embrace of jihadist 'peace'

本质区别
Under the guidance of Marxist election ideology in China,the essential difference between socialist democracy and capitalist democracy should be made a clear distinction.
要以中国马克思主义选举思想为指导,认清社会主义民主与资本主义民主的本质区别。
经济学
实质差异