Warning: file_put_contents(): Only 0 of 5449 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/52065.com/index.php on line 55 age-grading是什么意思，age-grading的翻译，age-grading音标、读音、用法和例句_伍贰汉英词典
The dry matter storage and water soluble sugar content in P. communis rhizomes increased in quadratic with increasing age class. 随着龄级的增加，芦苇种群根茎的干物质贮量和水溶糖含量均呈二次曲线变化。