From 1982 until 1987 he wrote a cycle of five symphony which are interrelated, yet varied structurally.

The cycle will vary as we get more plant cover.

These cycles vary in time either way, plus or minus, according to nutation.

Mr. Kleintop said the trumpeter swans could now and then really jolt the index, because breeding cycles vary and affect the price.

The growing cycle varies from 150 to 360 days, depending on the genotype, altitude and environmental conditions.

Those cycles vary from industry to industry.

Light cycles and seasons vary as one approaches the equator.

Each woman's hormonal cycle varies to some degree, and each woman responds differently to fertility drugs.

But cycles vary in length, and some women are irregular or have miscalculated their cycle.

The menstrual cycles may vary from a few days to six months, but can vary widely even in the same individual, often stopping for several cycles before resuming.