Avoid unnecessary repetition. One of the most common types of unnecessary repetition involves modifiers that repeat information given in the word modified.
small in size
silver in color
maximize as much as possible
Currently, aircraft must be kept a minimum of at
least three miles apart in the horizontal plane.
Currently, aircraft must be kept a minimum of three
miles apart in the horizontal plane.
--Jason C. Bunn, "Advanced Air Traffic Situation Control System" (modified)
In 1928, Alexander Fleming discovered for the first
time that Penicillum mold could kill Staphylococcus bacteria in petri
dishes. Fleming named the lethal
antibacterial chemical secreted by the deadly Penicillum mold,
dubbing it "penicillin."
In 1928, Alexander Fleming discovered that Penicillum mold could kill
Staphylococcus bacteria in petri dishes. He dubbed the lethal antibacterial
chemical secreted by the mold "penicillin."
--Laurie Garrett, The Coming Plague (modified)
Ability to separate from water is an essential prerequisite for a
hydraulic oil to be used in plant systems where contamination of the hydraulic
system by water is likely to form sludge emulsions of oil and water.
[There is much repetition of phrases and terms in this sentence.]
Plants with hydraulic systems routinely exposed to water should use
hydraulic oils that are immiscible with water.