五十余年来，它在维护世界和平与安全方面发挥了不可替代的作用。
In the more than fifty years the peace maintaining - ACTS have played an irreplaceable role in maintaining peace and safety of the world.
公司集五十余年电机设计制造经验，具有高、中级以上职称的专业技术人员近百人。
ZBTM had 50 years experience of designing and making motor, owned nearly 100 technician obtained titles of senior and middle.
五十余年来，中医肿瘤学经过了几代人的努力，在理论研究、基础研究以及临床研究方面分别都取得了突出的成绩。
In the past 50 years, TCM Oncology have get outstanding achievements in theory research, basic research and clinic research respectively.
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