Digital elevation models may be prepared in a number of ways, but they are frequently obtained by remote sensing rather than direct Surveying.

In his Phytologia (1800), Darwin wrote "from the sexual, or amatorial generation of plants new varieties, or improvements, are frequently obtained".

In my experience, the information gleaned on the interview and physical examination is frequently as valuable as objective data obtained by diagnostic examination.

Multi-modality registration methods are often used in medical imaging as images of a subject are frequently obtained from different scanners.

A Rhizoctonia-like anamorphic state, sometimes referred to the genus Ceratorhiza, is frequently obtained when isolates are cultured.

Extracts for research are frequently obtained from Candida yeasts.

Such evidence is frequently obtained using undercover agents, since evidence of a quid pro quo relation difficult to prove.

In spite of this, wives frequently obtained divorces, usually after they had already made arrangements with another man.

(These proteins are frequently obtained from guinea pig serum.)

The choicest rentals, she had learned, were frequently obtained by word of mouth rather than through the want ads.