Double Tails Half Dollar 半美元银色双面币
Pressure and velocity fields of spatial cross section on an aircraft model with strake wing and double vertical tails were measured using a seven hole probe.
采用七孔探针对一种边条翼双垂尾布局的飞机模型进行了空间压力场和速度场的测量。
The fatty acid tails on phospholipids can be saturated with no double bonds or unsaturated with one or more double bonds.
磷脂上的脂肪酸尾部可以是没有双键的饱和的，也可以是有一个或多个双键从而不饱和。
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