1·The descaling step and associated rinse would necessitate additional steps being added to the standard procedure.
除垢步骤及其附带的清洗步骤使得必须向标准规程中添加额外的步骤。
2·Particular care must be taken to avoid damage by manual methods when descaling thin section polished surfaces and close tolerance parts.
较薄部位、抛光表面和紧公差除垢时，应特别小心，避免人工方法损伤表面。
3·By means of weight loss method, effect of descaling agents GN-1 and GN-2 on corrosion of red copper and carbon steel was studied under dynamic and static conditions.
采用静态、动态失重法研究了GN 1和GN 2除垢液对紫铜、碳钢试片的腐蚀，试验了有无缓蚀剂存在等条件下的腐蚀情况。
4·It's reading a book. It's descaling a kettle. It's color-coordinating your shelves. It's sharpening your pencil.
拖延的事可以是读一本书，是给水壶除垢，是按照（书的）颜色去排列书架，是削铅笔。
5·Descaling and dechlorinate modes keep unit operating at peak performance.
除垢和脱氯模式下保持最佳性能的单位经营。