Cast on big heights, flexible, sometimes post tension, this type of concrete gives this smooth, unified, massive skin.
这种混凝土浇铸在高处，灵活有时后张，产生光滑、一致的大块表层。
2
Freshly cast grids are very flexible and may bend and distort if pasted immediately.
新铸出的板栅很柔软，如果立即涂膏，可能造成弯曲和歪斜。
3
The positive can be produced either by direct modeling in wax over a prepared core (direct lost-wax casting), or by casting in a piece mold or flexible mold taken from a master cast.