an antecedent improbability

It became clear at last that the secondary windings were not strong enough to withstand the severe electro-magnetic forces to which they had been subjected and that the transformer would have to be redesigned.

He took the aspirin with a single swallow of water.

Bimanual dissection is performed according to the rules of microsurgery: one surgeon works bimanually to dissect and remove the cyst wall, while a second surgeon drives dynamically the endoscope.