相关的原理和方法对解决某些组合计数问题有所帮助。
The relevant principle and method are helpful to solve some counting problems in combination problems.
半导体计数器的基本原理还是旧的。
介绍一种自动颗粒计数器的原理、检测方式、应用及其注意事项。
Introduce the principle and the application of one automatic particle counter.
介绍一种自动颗粒计数器的原理、检测方式、应用及其注意事项。
Introduce the principle and the application of one automatic particle counter.
应用推荐