ITCH
发表于 2025-3-30 11:41:11
Trade Periodicals and Newsletters,stablished journals serve those industrial sectors most immediately affected by biotechnology: pharmaceuticals, energy technology, chemicals, waste control, etc. Most of these now give some coverage to biotechnological activities but this is generally a modest effort, restricted to those development
BLOT
发表于 2025-3-30 12:55:08
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发表于 2025-3-30 19:33:04
Computer Databases,ickly. These computer databases have become a very useful public source of information during the last ten years. They are particularly well established in scientific subjects. For the benefit of readers who are unfamiliar with computerized searching, a brief introduction is appropriate. There is, h