Warning: file_put_contents(): Only 0 of 5144 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/001308.com/index.php on line 55 人妻中文无码久热丝袜,无码中文字幕av免费放,欧美a级成人淫片免费看
The findings indicated that the principal constituent of this strain producing gelatinous membrane is bacterial cellulose. 研究結(jié)果表明該菌所產(chǎn)凝膠膜的主要成分是細菌纖維素。
As the wrigglers develop, the gelatinous outer membrane decomposes, perhaps triggered by a chemical change in the tadpoles. 如同孑孓的生長，凝膠狀的外膜分解，也許觸及化學(xué)變化在蝌蚪。