Example sentences of "be [verb] by a time " in BNC.

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1 The concentration of pancreatic ( group I ) PLA2 ( pan-PLA2 ) in serum was measured by a time resolved fluoroimmunoassay with a monoclonal ( mouse ) antibody raised against human pancreatic PLA2 .
2 The concentration of synovial type ( group II ) PLA2 ( syn-PLA2 ) in serum was measured by a time resolved fluoroimmunoassay with a polyclonal ( rabbit ) antibody raised against recombinant syn-PLA2 .
3 On the Canterbury estates , the initial period of leasing from 1380 to 1440 was followed by a time when it was harder to secure tenants , but after about 1490 there was some recovery in revenues and evidence that there was competition for leases ( 80 , pp.79 , 86 ) .
4 This was followed by a time of crisis : employment !
5 A similar uncertainty is apparent in the third example where a bill of lading was issued by a time charterer , but the shipper sued the owner of the vessel .
6 The torpedo then sank under a moored target and was fired by a time fuse which allowed MTB 74 time to get clear .
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