The rate of mature bolls from upper,middle and lower was 37.6%,33.9% and 28.6% respectively,the inner was 82.7% which was the 4.7 times of the external.是什么意思_The rate of mature bolls from upper,middle and lower was 37.6%,33.9% and 28.6% respectively,the inner was 82.7% which was the 4.7 times of the external.在线翻译_英语_读音_用法_例句