手术前准备
preoperative preparation
pre-operation preparation
术前肠道准备
Preoperative bowel preparation
生产技术准备
production technical reserve
生产技术准备计划
production technical reserve plan
生产技术准备周期
production technical reserve period
术前备皮
preoperative preserved skin
Pre-operative skin preparation
检查前准备
Preparation before examination
检前准备
Preparation before examination
施工前准备工作
preparative work before construction