tribrach การใช้

A theodolite is mounted on its tribrach containing four thumbscrews, or in modern theodolites, three for rapid leveling.
For example, is each of the following lines from the chorus of " Nymphetamine " a tribrach followed by a primus paeon followed by a spondee, or a quartus paeon followed by a dibrach followed by a bacchius?
The existence of the tribrach has been contested by some writers and its entry in the Oxford English Dictionary under'Poetry Terms'lacks a formal definition, but does appear, primarily as a musical form, in some American dictionaries, such as Virginia Tech Multimedia Music Dictionary.