常体积循环双轴试验
constant volume cyclic biaxial test
单双循环流
single and double recirculation flow pattern
电源的双重性
redundancy of power supply
广义双循环半群
generalized bicyclic semigroups
孔式微循环双效蒸发器
porous micro circulation double effect evaporator
论歌唱风格的双重属性
On the Dual Nature of the Style of Songs
酶双循环法
Enzymatic double cycle method