The content of DTN and PTN were 77.2% and 22.8%,thereinto,the content of ammonia was 50.8%,while the contents of DTP and PTP were 75.6% and 24.4%.是什么意思_The content of DTN and PTN were 77.2% and 22.8%,thereinto,the content of ammonia was 50.8%,while the contents of DTP and PTP were 75.6% and 24.4%.在线翻译_英语_读音_用法_例句