the DDVP residual was 0.143 mg/kg if using DDVP smoking agent method, and the DDVP residual was under the sanitation standard;是什么意思_the DDVP residual was 0.143 mg/kg if using DDVP smoking agent method, and the DDVP residual was under the sanitation standard;在线翻译_英语_读音_用法_例句