702736 發(fā)表于 2021-1-14 07:27' N! c( }* u1 H/ e4 m- M7 z9 o. F
你這是錫合金屑,
tsaohuan 發(fā)表于 2021-1-14 09:562 ]$ c. {( \1 g! }0 c
I find some material maybe will explain your problems.
遠(yuǎn)祥 發(fā)表于 2021-1-14 14:20
這晶體放大了多少倍啊?
歡迎光臨 機(jī)械社區(qū) (http://www.whclglass.com.cn/) | Powered by Discuz! X3.5 |