1.Ectopic Pregnancy is the nidation and development of the amphicytula out of the cavitas uteri .

1.（孕卵在子宫腔部位床、育，宫孕。

2.Embryo nidation is a complex and sequencing physiological processes.

2.床是复杂程序化生理过程。

3.Abstract: Embryo nidation is a complex and sequencing physiological processes.

3.床是复杂程序化生理过程。