这些可能是流产或者宫外孕(受精卵在宫腔外着床，通常为输卵管)的症状。

These may be signs or symptoms of a miscarriage or an ectopic pregnancy - when the fertilized egg implants outside the uterus, usually in a fallopian tube.

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结果：1）枯萎卵妊娠的胎囊内只有囊液，没有胚胎组织。 妊娠囊外没有绒毛组织或绒毛组织较稀疏。

Results:1) There is no embryonic tissue in gestation sac without or with little villous tissue in anembryonic pregnancy.

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卵放在木段外，卵期缩短为13 ~ 15天，平均孵化率及初孵幼虫对光肩星天牛幼虫的平均寄生率均有所提高，分别为83.3%和87.5%。

When eggs placed out of the wood block, egg stage is 13 ~ 15days, average hatching rate and average parasite rate are increased, they are 83.3% and 87.5% respectively.

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