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<collection xmlns="http://www.loc.gov/MARC21/slim">
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  <controlfield tag="008">210402s9999    xx            000 0 und d</controlfield>
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   <subfield code="c">Phạm Văn Tấn (chủ nhiệm đề tài)</subfield>
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   <subfield code="c">2000</subfield>
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   <subfield code="a">Nôi dung nghiên cứu thiết kế tổng đài điện thoại nội bộ, tự động reset khi có lỗi trong lúc hoạt động, hệ thống báo bận hoặc lỗi cho từng thuê bao, đèn báo xung nhập...</subfield>
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   <subfield code="a">Telephone directory assistance,Điện thoại,Hỗ trợ danh bạ điện thoại,Telephone</subfield>
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   <subfield code="x">thiết kế,Design</subfield>
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   <subfield code="i">Qhieu</subfield>
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   <subfield code="a">Trung tâm Học liệu Trường Đại học Cần Thơ</subfield>
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