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[Recent application advances of covalent organic frameworks for solid-phase extraction]. [PDF]

open access: yesSe Pu, 2023
Gao YY   +8 more
europepmc   +1 more source

输电用间隙式避雷绝缘子装置

open access: yesDianci bileiqi, 1991
介绍了间隙式避雷绝缘子装置的研制过程和在线路上的运行情况。阐述了雷电事故和事故对策,以及装置应具备的条件。说明了限流元件的长度、串联间隙长度 ...
doaj  

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