sub-metal的意思|示意

This standard solution was accurately prepared in super-clean laboratory with highly pure metal copper and sub-packed in 20 ml ampoules.

本标准溶液以高纯金属铜片在超净实验室中准确配制并分装于20毫升安瓿中。

This method can be used to directly write many different types of metal or semiconductor features on Si substrates with sub 50 nanometer linewidth.

用这种方法可以在硅表面直接书写线宽度低于50纳米的多种金属和半导体组成的纳米结构。

A new way to build a metal hollow cylindrical waveguide for sub-mm and mm waves is given by coating gold on the inner-wall of the glass tube.

比较了玻璃介质和不同材料的金属圆柱波导管亚毫米波和短毫米波的传输特性。