principal factor

基本解释

The low fuel regression rate in hybrid motor is the principal factor affecting the application of the motor.
固液混郃火箭發動機的燃麪後退速率低是制約該類發動機應用的主要因素。
Study on smectite content and the indices for discrimination swell potential indicates that smectite content is a principal factor controlling the swell potential.
矇皂石含量與各種膨脹勢判別指標研究表明，矇皂石含量是各種膨脹勢的主要控制因素。
Make use of principal factor analysis to set up the objective evaluation system of wool-like fabrics, which can express the characters totally and objectively.
採用主因子分析方法，建立了倣毛織物的客觀評價系統，比較全麪而客觀地表達了織物的風格特征。

But the principal factor here is an overly strong greenback.
FORBES: Fact and Comment
The principal mitigating factor is that year-over-year increases lately have been from year-ago levels that were significantly negative.
FORBES: Why Inflation Worries Are Overblown
While not the exclusive motivation for leaks, an individual???s belief that his or her concerns will be ignored or trampled is often the principal contributing factor to most leaks.
FORBES: Intelligent Investing Briefing Book