Sentence examples for were often needed from inspiring English sources

What the history of the atom shows is that although a sturdy mathematical base could provide some support for a new idea or theory, accompanying visuals were often needed to convince.

When first introduced in the United States about a decade ago, they were viewed mostly as a cheaper, lower-radiation alternative to big, medical CT scanners that were often needed to diagnose serious ailments of the mouth and face.

The PM, who has been urged to cut aid spending by some Tories, said security and stability were often needed before development could take place.

Although LC/MS method using atmospheric pressure chemical ionization (APCI) as ion sourse did not require the derivatization step, CHCl3 and CH2Cl2 were often needed in the pre- or post-column stage to attain a satisfactory sensitivity [17 20].

Sixteen and twenty four horses were often needed to pull the graders, and several drivers were required.

The fluids were often needed during more than half a million cardiac surgeries each year and in the late 1990s the market for blood expanders containing hetastarch was growing due to a shortage of albumin, one of the older, more commonly-used products.

Prolonged treatment is often needed.

Good solutions are often needed in real time.

Due to these temporal demands, an olfactometer is often needed.

Strengthening is often needed for deteriorated and inappropriately constructed structures.

An intermediary is often needed to help overcome the obstacles.