As in most metrical systems, Vietnamese meter is structured both by the count and the character of syllables.
In English similar accentual-syllabic metrical systems, a line of iambic trimeter consists of three iambic feet.
The introduction of the metrical system into ophthalmology, London : J. & A. Churchill, 1876.
However, in describing physical phenomena (which occur at certain moments of time in a given region of space), each observer chooses a convenient metrical coordinate system.
The number of metrical systems in English is not agreed upon.
Virgil's hexameters are generally regarded as "the supreme metrical system of Latin literature."
Here, in these ancient monuments, Petrie discovered two different metrical systems.
For example, the poets use an extraordinary strict metrical system in spite of their lack of knowledge of theory or even an alphabet.
There seems to be a consensus among the few scholars who have seriously studied the metrics of zajal that it follows two distinct metrical systems.
Another metrical system was put forward by John C. Pope in which rhythmic stress is assigned using musical patterns.