《電力變壓器能效限定值及能效等級》(GB20052-2024)【全文附高清無水印PDF+可編輯Word版下載】英文標準名稱:Minimum allowable values of energy efficiency and the energy efficiency grades for power transform
《熱泵和冷水機組能效限定值及能效等級》(GB19577-2024)【全文附高清無水印PDF+可編輯Word版下載】英文標準名稱:Minimum allowable values of the energy efficiency and energy efficiency grades for heat pumps an
《冷庫(箱)和壓縮冷凝機組能效限定值及能效等級》(GB44015-2024)【全文附高清無水印PDF+可編輯Word版下載】英文標準名稱:Minmum allowable of energy efficiency and energy efficiency grades for cold store(box) and
《通風機能效限定值及能效等級》(GB19761-2020)【全文附高清無水印PDF+可編輯Word版下載】英文標準名稱:Minimum allowable values of energy efficiency and energy efficiency grades for fan簡介:本標準規定了通風機的能效等級、
《塔式和機架式服務器能效限定值及能效等級》(GB43630-2023)【全文附高清無水印PDF版+可編輯word版下載】英文標準名稱:Minimum allowable values of energy efficiency and energy efficiency grades for tower and rack
《電氣簡圖用圖形符號第2部分:符號要素、限定符號和其他常用符號》(GB/T4728.2-2018)【全文附高清無水印PDF版+可編輯Word版下載】英文標準名稱:Graphical symbols for electrical diagrams—Part 2:Symbol elements,qualifying sym