Irregular menstruation is when the length of the cycle is more than 35 days, or if the duration varies. A period, or menstruation, is the part of the menstrual cycle in which the endometrium, which is the lining of the uterus, is shed. This appears as bleeding from the womb that is released through the vagina.
1 There is no universally agreed symbol for the cubic foot/feet. 2  Various abbreviations are used, dependent on context, including (but not exclusively) cubic ft, cu ft, cb ft, cbf, ft3, foot3, feetÂ³, ftÂ³.  The cubic foot is used mainly in the United States, Canada and the United Kingdom as a measurement of volume.
The cubic foot is a U.S. unit of measurement for volume. It is the space created by a cube one foot wide by one foot long by one foot deep, or the equivalent of 1,728 cubic inches. The gallon is a commonly used measure of liquid volume. One gallon of liquid occupies a 231-cubic-inch space. Thus, one cubic foot equals about 7.48 gallons of liquid. To convert cubic feet to gallons, simply multiply the volume in cubic feet by 7.48 for the liquid volume in gallons. Measure the width, length and depth of the fluid in feet. Note: These are the three parameters for determining volume in cubic feet.