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• Two photomultipliers operate in coincidence to reject spurious noise.

• To ameliorate the unfavourable effects of ...

• If a molecule of water is eliminated between two hydroxyl groups ...

• How to banish noise and hum in high-fidelity sets.

• Bend the lens to cancel the spherical aberration .

• We should clear away this difficulty.

• Determine whether these faults can be corrected.

• This feature does away with the need for costly servocontrols.

• The installation of a waste-heat boiler eliminates the need of some other equipment.

• Standard forms of boiler and heating surface may be used, thus obviating the need for expensive special plants.

• Some of the bad effects of copper in the steel can be overcome by the addition of nickel.

• Such icing is dealt with by heating the intake air.

• The part is polished to remove the blemishes acquired during ...

• To place the magnets properly so as to remove part of the deviation, ...