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
主导线形向画面的左右方向发展，适宜表现宏阔、宽敞的横长形大场面景物的构图形式称为：
the feedback circuit connection shown here is （ ）.
when a diode is doped with either a pentavalent or a trivalent impurity its resistance will （ ） .
当我们以同一关键词在不同的搜索引擎上进行查询时，搜索的结果和排列顺序是相同的。
the transistor model replaces the （ ） with the junction diode's ac resistance.
大调布鲁斯在音高层面，往往同时使用ⅲ级和降ⅲ级。
the resistor voltage and resistor current in this circuit are （ ）.