Why can my hand be when is season alternant desquamate ?

我的手为什么会在季节交替的时候脱皮呢？

The four seasons is alternant , arrived again cold winter .

四季交替，又到了严寒的冬季。

Research on characteristics of hydrodynamics and oxygen mass transfer in external airlift alternant loop complex bio-filter .

气提升交替循环流复合滤池的流体力学和氧传质特性研究。

These alternant geometric and mechanic change will affect the life-cycle of dies and the quality of workpieces in the end .

这种几何力学的交替影响，最终将影响模具服役寿命及制件质量。

The abidance that single product economy grows to cannot keep economy extremely grows , the changeover of dominant industry group needs many economy to increase action of extremely alternant play , multipolar growth needs to overcome the problem that exists in technical innovation , undertake reform to innovation mechanism .

单一经济增长极不能维持经济的持续增长,主导产业群体的转换需要多个经济增长极交替发挥作用,多极增长需要克服技术创新中存在的问题,并对创新机制进行改革。