Plains All American Pipeline, L.P. (Plains) is engaged in the transportation, storage, terminalling and marketing of crude oil and refined products, as well as in the processing, transportation, fractionation, storage and marketing of natural gas liquids (NGL).
The first stage of labor is the longest and involves three phases: 1  Early Labor Phase âThe time of the onset of labor until the cervix is dilated to 3 cm. 2  Active Labor Phase â Continues from 3 cm. until the cervix is dilated to 7 cm.  Transition Phase â Continues from 7 cm. until the cervix is fully dilated to 10 cm.
The first stage of labour â dilation. The cervix needs to open about 10cm for a baby to pass through. This is what's called being fully dilated. Contractions at the start of labour help to soften the cervix, so that it gradually opens.The process of softening can take many hours before youâre in what midwives call established labour.he first stage of labour â dilation. The cervix needs to open about 10cm for a baby to pass through. This is what's called being fully dilated. Contractions at the start of labour help to soften the cervix, so that it gradually opens.