前工序 meaning in English

front-end

Pro - process : physical process
前工序-机械性加工
In pdm , finish - to - start is the most commonly used type of logical relationship
开始-完成-紧前工序必须在紧后工序完成前开始
Main applications : glass lenses , resin lenses , microscopes , telescopes , camera lens , featuring glass , prism , lens , film and optical products and assembly processes between former cleansing
主要应用于：玻璃镜片树脂镜片显微镜望远镜相机镜头镀膜玻璃棱镜透镜等光学制品的镀膜前后及装配前工序间清洗。
With the application of the model , the exergy efficiency and the exergy loss in the system of ironmaking ( sintering , spheric , ironmaking ) is analyzed and direction and path of energy conservation are described
应用该模型，分析了铁前各工序（烧结、球团、炼铁工序）的（火用）效率、（火用）损失，指出了铁前工序的节能方向和途径。