A.臺(tái)座準(zhǔn)備→鋪放預(yù)應(yīng)力筋→張拉→安裝模板 B.臺(tái)座準(zhǔn)備→鋪放預(yù)應(yīng)力筋→安裝模板→張拉 C.臺(tái)座準(zhǔn)備→安裝模板→鋪放預(yù)應(yīng)力筋→張拉 D.安裝模板→臺(tái)座準(zhǔn)備→鋪放預(yù)應(yīng)力筋→張拉
A.閃光對(duì)焊 B.電渣壓力焊 C.電阻點(diǎn)焊 D.埋弧壓力焊
A.50% B.75% C.80% D.100%