来自MSN2 个月
N scale manual turnout controlAnd not too much interference would be needed as it is N scale after all. He tossed around a couple ideas, and eventually a solution was found: a Micro Engineering switch stand handle and a simple ...
The new transistor is built using an ultrathin material created from stacked, parallel layers of boron nitride, which researchers claim can switch between ... on the wafer scale, we could create ...
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