... Has Been Officially Used 已经正式使用 Has Been Successfully Used 已成功使用 Has Never Been Used 从来没有使用过 ; 已经没有被使用 ...
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后换上SKY数控系统，并加上光栅尺、加配数控分度头，现已成功使用4年多，效果良好。
SKY replaced after the NC system, with grating ruler, add with CNC dividing head, has been successfully used in many 4 to good effect.
这家医院的妇科医生们已成功地在60名妇女的身上使用了该药。
Gynaecologists at the hospital have successfully used the drug on 60 women.
休斯顿地铁系统已成功测试了呼吸安全系统，它使用紫外杀菌照射杀死某些类型的细菌，致死率高达99%。
The Houston Metro system has successfully tested the Breathe Safe system, which USES Ultraviolet Germicidal Irradiation to kill up to 99 percent of certain types of bacteria.
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