VARIATION BETWEEN PALATAL VOICED FRICATIVE AND PALATAL APPROXIMANT IN URDU SPOKEN LANGUAGE

A tower structure for offshore oil and gas fields is formed from various vertically spaced and interconnected tower sections. At least one of the tower sections is rotated about a vertical axis relative to another section so as to define a twisted portion. The number and orientation of the tower sections are varied depending on the particular environment and, particularly the water depth where the tower structure is located.