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.
6. Dilation: Opening of the cervix. Dilation is the process of the cervix opening in preparation for childbirth. Dilation is measured in centimeters or, less accurately, in âfingersâ during an internal (manual) pelvic exam.âFully dilatedâ means youâre at 10 centimeters and are ready to give birth.ilation: Opening of the cervix. Dilation is the process of the cervix opening in preparation for childbirth. Dilation is measured in centimeters or, less accurately, in âfingersâ during an internal (manual) pelvic exam.