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  <leader>01680nam a2200325 a 4500</leader>
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  <controlfield tag="003">Thư viện trường Cao đẳng Kỹ thuật Cao Thắng</controlfield>
  <controlfield tag="005">20060418000000</controlfield>
  <controlfield tag="008">060418</controlfield>
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   <subfield code="a">Thư viện Trường CĐ Kỹ Thuật Cao Thắng</subfield>
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  <datafield tag="024" ind1=" " ind2=" ">
   <subfield code="a">RG_1 #1 eb0 i1</subfield>
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  <datafield tag="041" ind1="0" ind2="#">
   <subfield code="a">vie</subfield>
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   <subfield code="a">398.621.37 / </subfield>
   <subfield code="b">T309C-d</subfield>
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   <subfield code="a">Tổng cục Tiêu chuẩn-đo lường-chất lượng</subfield>
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   <subfield code="a">Tiêu chuẩn Việt Nam: Dụng cụ đo điện. Yêu cầu kỹ thuật chung: TCVN 4478-87 /</subfield>
   <subfield code="c">Tổng cục Tiêu chuẩn-đo lường-chất lượng</subfield>
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   <subfield code="a">In lần thứ 1</subfield>
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   <subfield code="a">H. :</subfield>
   <subfield code="b">Ủy ban khoa học kỹ thuật nhà nước ,</subfield>
   <subfield code="c">1987</subfield>
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   <subfield code="a">58tr. ;</subfield>
   <subfield code="c">19cm</subfield>
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   <subfield code="a">Tiêu chuẩn này thay thế cho TCVN 1689-75; TCVN 1690-75 và áp dụng cho các loại dụng cụ đo điện chỉ thị trực tiếp dòng điện một chiều hoặc xoay chiều để đo các đại lượng:</subfield>
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   <subfield code="a"> -Dòng điện</subfield>
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   <subfield code="a">-Điện trở</subfield>
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   <subfield code="a">-Công suất</subfield>
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   <subfield code="a">-Hệ số công suất</subfield>
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  <datafield tag="520" ind1="#" ind2="#">
   <subfield code="a">-Góc lệch pha</subfield>
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   <subfield code="a">-Tần số</subfield>
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  <datafield tag="520" ind1="#" ind2="#">
   <subfield code="a">Tiêu chuẩn này cũng áp dụng cho các loại thiết bị phụ của dụng cụ đo điện nói trên.</subfield>
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  <datafield tag="520" ind1="#" ind2="#">
   <subfield code="a">Tiêu chuẩn này không quy định việc bảo vệ dụng cụ đo để tránh gây ảnh hưởng bên ngoài.</subfield>
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   <subfield code="a">Tiêu chuẩn kỹ thuật</subfield>
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   <subfield code="a">Dụng cụ đo diện</subfield>
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