Sinden is set in his ways, which include moderate wages for players and frequent replacements on his coaching staff.

As such, the chain and sprockets of a nine-speed system require more frequent replacement than an eight.

It would be able to produce boreholes with large constant diameter without frequent replacement of the drill bits.

Hence frequent replacements are called for and new baskets are always kept ready.

And since the power unit of this particular item will not last longer than six months, there will be the necessity of frequent replacements.

Air and oil filters will become blocked requiring frequent replacement.

So has the frequent replacement of office computers with faster and more powerful ones.

These tanks can have extremely small liquid volumes, as low as 10 mL, and consequently require frequent replacement.

But independent medical experts are less certain that frequent replacements are needed.

Another advantage is that generally, the voice prosthesis placed at the time of surgery lasts relatively long and requires no early frequent replacements.