см. тж. до настоящего времени

• This technique is one of the most effective separation methods yet devised.

• Atomic hydrogen remains a gas at the lowest temperature we have yet investigated.

• So far it has been assumed that the field applied to the gas is uniform.

• The designs discussed thus (or so) far provide examples of ...

• To this point the assumption has been made that ...

• The discussion up till (or to) now (or up to the present) has been based upon ...

• This can be done more rapidly and accurately than has hitherto been possible.

• Up to this point it has been possible to work entirely with the concept of ...

• The applications heretofore have tended towards special purpose machines.

• The other investigations mentioned up until this point can be arranged without sending the patient to hospital.

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