principal factor

基本解释

The low fuel regression rate in hybrid motor is the principal factor affecting the application of the motor.
固液混合火箭发动机的燃面后退速率低是制约该类发动机应用的主要因素。
Study on smectite content and the indices for discrimination swell potential indicates that smectite content is a principal factor controlling the swell potential.
蒙皂石含量与各种膨胀势判别指标研究表明，蒙皂石含量是各种膨胀势的主要控制因素。
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.
采用主因子分析方法，建立了仿毛织物的客观评价系统，比较全面而客观地表达了织物的风格特征。

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