Computers are in widespread use now(1972)to assist in development of the best operational plans for managing ground water reservoirs . 现在（1972）普遍使用计算机来管理地下水库，协助人们选定最佳的运用方案。
The effort spent on careful grading, mixing and compaction of concrete will be largely wasted if the concrete is badly cured . 如果混凝土养护得很差，那么在精心选定混凝土的级配、拌和和密实成型上所耗费的精力将是徒劳无益的。
Gets the collection of cells selected by the user 获取用户选定的单元格的集合。
You can select it with the mouse or the keyboard 您可以用鼠标或键盘选定文本。
Moves the selected search path down in the list 在列表中将选定的搜索路径下移。
Indents the selected paragraph by one indent unit 将选定段落缩进一个缩进单元。
Move a font up in the selected fonts list 在“选定的字体”列表中上移一种字体。
Displays a list of files in the selected folder 显示选定文件夹中的文件的列表。
Inserts a new element after the selected node 在选定的节点后插入了一个新元素。
Gets the end color of the gradient used when the 被选定时使用的渐变的结束颜色。
