Normal 0 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4 Hi Normal 0 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4 Yesterday when I used AFM instruments (Dimension 300) in our lab, I found the objective microscope did not focus on the tip, so I located the tip and made objective focus on tip. However after I finished