一篇3000字的文章，怎么也得50个with吧。
with在一定程度上取代状语从句
比如这个with就可以用when代替
Generally, with elevating the operation temperature, the resistance decreased rapidly both in air and in NO atmosphere.
with取代and
When 0.5% NO was fed to the cathode and H2 used as the fuel, the cell reached a maximum power density of 13.06 mW cm2 with the open circuit voltage of 0.599 V at 700 C.
with短语作定语
the electrolyte-supported fuel cells with LSMM as the cathode are tested.
with表示附属
To make an electrolyte-supported single cell, the SDC powders were pressed into a pellet with a diameter of 13 mm and sintered at 1400 C for 4 h
总结
with几乎啥都可以干，重点当然是with 可以把从句 变成短语之类的。显得不啰嗦，这是其存在价值。