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You see, these studies revealed that these (vibrations) were of two types: (compression) --- or P --- waves and (shear) --- or S --- waves.

H. I. V. evolved about a century ago from a chimpanzee virus known as simian immunodeficiency virus, or S. I. V.

Either of two Old World songbirds(Sylvia communis or S. curruca) having brownish plumage and a white throat and belly.

You see, the studies reviewed that these vibrations were of two types: compression s, or P waves, and sheer, or S waves.

conversely, diagonal lines running in the opposite direction are known as left-hand or S twills .

Standard and Poor's, or S&P, is one of three main agencies that examine debt issues.

response to advertising can be concave or S-shaped, and sales will often be positive at zero advertising.

The catalytic system tolerated a broad range of functional groups or substrates containing N or S atom.

In the substitution reaction of nucleophilic , whatever we use S_N1 or S_N2 reaction course, the rate of reaction is the most rapid.

This paper discusses the formation mechanism and decision making process of market or's unethical behavior.

These areas may be treated with the above Bti or S-methoprene products also.

There are two or's in this sentence.

If no option is specified upon execution, the default displays the new size or s option.

Curved lines or S shaped lines imply quiet, calm and sensual feelings.

Foremost among these is the Strategic and Economic Dialogue, or S&ED.

beak semicircular or S-shaped, very long, slender.

beak straight or S-shaped, not bent upward, slender.

I enjoy my lessons very much but I sometimes find it difficult to prconduct themselves ice my or's English.