There are some collections of P. flexilis with straight-walled or very weakly porose upper leaf cells.
柔韧性假单胞菌的一些集合具有直壁或极弱的多孔上部叶细胞。
2
New type of CFTST columns with cold-formed longitudinal straight ribs is put forward to improve the mechanical capability of columns of concrete-filled thin-walled steel tube (CFTST).