см. тж. при необходимости

• The table shaft is hollow so that if required (or if needed, or if necessary), hydraulic lines can be ...

см. тж. дано; при условии, что

• This term is useful, however, as long as the complexities involved are kept in mind.

• Once the surface of normal velocity has been obtained, the wave front may be easily constructed.

• The exact structure, providing (or provided) it is known, is given in a schematic representation.

• The coke recovered in this operation is of electrode grade if produced from low-ash content feedstock.

• All these jugs are housed in wooden boxes to catch fragments in the event that atmospheric pressure shatters the glass.

• Such materials are satisfactory provided (that) they do not form corrosive chlorides.

• Should the presence of cast iron escape the first examination it may then be detected and any adjustment necessary can be made on the spot.