cushion block meaning in English

电块
减力挡

Column rebars and cushion block work , install the steel inserts and wall binding rebar
绑扎柱筋，垫保护层垫块，安放埋件、墙拉结筋。
Beam side form shall be installed after all work inspected and accepted such as beam rebar work , cushion block laying , steel inserts installation , steel doweling and pocket molding bed , etc
绑扎梁筋，垫保护层垫块，安放埋件、插筋、预留孔胎模等，经检查合格后扣梁侧模。