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Ecological distribution of ammonia oxidizers in Yellow River sediments and their influencing factors

Release time:2023-10-19  Hits:

  • Key Words:Injection compression molding(ICM) technology; plastic optical lens; mould; composite gate; cavity pressure
  • Abstract:The characteristic of injection compression molding technology and the application of the technology in mould for the plastic optical lens were introduced. The structure and the work principle of the mould for optical lens were designed and described, The stress problem in the injection process was resolved, the deformation problem and dimensional accuracy of product were improved.
  • Volume:501
  • Issue:
  • Translation or Not:no

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