en ratio 中文意思是什麼

en ratio 解釋
信號噪音比
  • en : n. 1. 字母N或n. 2. 【印刷】對開〈em 全身的一半〉。
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. Medical electrical equipment - characteristics of electro - optical x - ray image intensifiers - part 6 : determination of the contrast ratio and veiling glare index iec 61262 - 6 : 1994 ; german version en 61262 - 6 : 1994

    醫療電氣設備.光電x射線圖象增強器特性.第6部分:對比
  2. Gas air ratio controls for gas burners and gas burning appliances - part 1 : pneumatic types ; german version en 12067 - 1 : 1998

    氣體燃燒爐和氣體燃燒裝置的氣體空氣混合比控制調節
  3. En 12067 - 1 gas air ratio controls for gas burners and gas burning appliances. part 1 : pneumatic types

    氣體燃燒爐和燃氣裝置的燃氣空氣比率控制裝置.第1部分:氣動型
  4. Gas air ratio controls for gas burners and gas burning appliances - part 2 : electronic types ; german version en 12067 - 2 : 2004

    氣體燃燒器和燃氣裝置用燃氣空氣比率控制裝置.第2部
  5. Superconductivity - part 4 : residual resistance ratio measurement ; residual resistance ratio of nb - ti composite superconductors iec 61788 - 4 : 2001 ; german version en 61788 - 4 : 2001

    超導性.第4部分:剩餘電阻比測量:鈮-鈦復合超導體的剩
  6. Plastics - cellulose acetate in dilute solution - determination of viscosity number and viscosity ratio iso 1157 : 1990 ; german version en iso 1157 : 1999

    塑料.稀釋溶液中的乙酸纖維素.粘度值和粘度比的測定
  7. Flexible insulating sleeving - part 3 : specification requirements for individual types of sleeving ; sheet 233 : heat - shrinkable fluoroelastomer sleeving, flame retarded, fluid resistant, shrink ratio 2 : 1 iec 60684 - 3 - 233 : 1998 ; german version en 60684 - 3 - 233 : 1998

    絕緣軟管襯.第3部分:各類管襯的規范要求.第233頁:阻
  8. Aerospace series - elements of electrical and optical connection ; test methods - part 704 : electrical elements ; measurement of turns ratio on a transformer used in a coupler ; german and english version en 2591 - 704 : 2001

    航空航天系列.光電連接件.試驗方法.第704部分:電氣元
  9. Unbound and hydraulically bound mixtures - part 47 : test method for the determination of california bearing ratio, immediate bearing index and linear swelling ; german version en 13286 - 47 : 2004

    鬆散的和液力粘合的混合料.第47部分:測定加利福尼亞
  10. Superconductivity - part 12 : matrix to superconductor volume ratio measurement ; copper to non - copper volume ratio of nbsn composite superconducting wires iec 61788 - 12 : 2002 ; german version en 61788 - 12 : 2002

    超導性.第12部分:基塊超導體體積比例測量. nb3sn復合
  11. Superconductivity - part 11 : residual resistance ratio measurement ; residual resistance ratio of nbsn composite superconductors iec 61788 - 11 : 2003 ; german version en 61788 - 11 : 2003

    超導性.第11部分:剩餘電阻率的測量. nb3sn復合超導體
  12. Flexible insulating sleeving - part 3 : specification requirements for individual types of sleeving ; sheet 217 : heat - shrinkable polyolefin sleeving, flame retarded, shrink ratio 3 : 1 iec 60684 - 3 - 217 : 1998 ; german version en 60684 - 3 - 217 : 1998

    絕緣軟管套.第3部分:各類管套的規范要求.第217頁:收
  13. Flexible insulating sleeving - part 3 : specification requirements for individual types of sleeving ; sheet 218 : heat - shrinkable polyolefin sleeving, not flame retarded, shrink ratio 3 : 1 iec 60684 - 3 - 218 : 1998 ; german version en 60684 - 3 - 218 : 1998

    絕緣軟管套.第3部分:各類管套的規范要求.第218頁:收
  14. Gas air ratio controls for gas burners and gas burning appliances - part 1 : pneumatic types ; amendment a1 ; german version en 12067 - 1 : 1998 a1 : 2003

    燃氣燃燒器和燃氣裝置用燃氣空氣比例控制器.第1部分
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