常見例句雙語例句This paper introduces construction technology of spray polyurea elastomer used in Beijing Shooting Range CTF.介紹了奧運(yùn)射擊中心飛碟靶場(chǎng)看臺(tái)屋麪防水耐磨工程採用噴塗聚脲彈性躰的施工工藝。 返回 beijing shooting range ctf