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.

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。

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Check for signs of leakage or cracked surfaces at both ends of tube, exhaust manifold and EGR valve.

检查两个管的末端，排气歧管和EGR阀是否有泄露或表面有裂痕。

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On the eve of Thanksgiving, several days before the World Trade Center line reopened, Mr. Lejda and a colleague walked through the river tube, he said, hanging up speed limit signs in the tunnels, since the train operators would be without the lighted signals that usually signal when and where to slow down.

WSJ: PATH's Road Back Is Rocky