under certain conditions, two rows of vortices with opposite rotation direction and regular arrangement appear periodically on both sides of the back of the object, this is called .
scientists that have made significant contribution to the statistical theory of turbulence include
please translate the following into chinese. express the meaning of the word "fluid" appropriately. china is watching the fluid situation with concern in the middle east.
骨折的外因( )
悬吊复位法时患者俯卧床上，患肢悬垂于床边，根据病人肌肉发达程度，让患肢手提2~5kg重物。
锁骨（ ）骨折时，需要判断喙锁韧带是否已经损伤
全球唯一负责制定和维护足球竞赛的机构是国际足球理事会
大庆油田主要发育的圈闭类型为？
下列关于还原糖说法不正确的是（ ）
离港系统内删除旅客的指令是pw
two types of holding the racket.
成都又称（ ）。
根据地下水的苏林分类，下列哪种水型的油田水处于封闭性较好的地层？
it has been a part of the official program of the summer olympic games since_____.