因素: factor; element 短语和例子决定因素 decisive factor; 积极因素 positive factor; 关键因素 the key facter; 致病的因素 factor in the causation of disease; 社会因素 social factor; 主导因素 leading factor; 基本因素 essential elem
安装: install; erect; fix; mount; assemble; get-set; set up; put-on; fix assemblage 短语和例子安装电话 install a telephone; 安装机器 install machinery; 安装扩音器话筒 set up a microphone; 安装蒸馏塔 erect a distillation
限制因素: deterring factorsfactor of constraintlimiting factorlimitingfactorrestricting elementsuppression factor