an ultrahigh vacuum.
超真空
an ultrahigh vacuum.
超真空
The production technologies of PVA with ultrahigh relative molecular weight mass and high stereo-tacticity were introduced.
介绍了超相对子量和立构规整度的PVA制备方法;
声明:以上例句、词类均由互联网资源自动生成,部未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。