cdd 中文意思是什麼

This paper introduces the fundamental and characteristic of the fuel cell, analyzes the necessity and detail scheme of adding assistant energy sources to the fuel cell power generation system. considering for the special demand of the fuel cell power generation system, this paper gives out a push pull forward converter ( ppfc ) with passive and lossless dual cdd snubber circuit

本文首先闡述了燃料電池的基本原理和性能特點，分析了在燃料電池發電系統中引入輔助能源系統的必要性及具體的配置方案，然後針對燃料電池發電系統對dc / dc變換器設計的特殊要求，提出了一種加雙cdd無源無損緩沖電路的推挽正激變換器（ pushpullforwardconverter ， ppfc ） 。

Since 1951, the total fluxes of cdd / fs in the qingdao coastal sea have increased steadily. the total teqs ( teq ) fluxes decreased in 1980 and then increased again, exceeding all the levels before. except for the area near the river mouth, the source of pcdd / fs at other stations was believed to be the atmospheric deposition from long - range transport

Pcdd / pcdf比值和ocdd占總p4 . scdd / fs的百分比ocdd （ %藝）表明青島近海pcdd / fs的來源相對恆定，除河口處受河流輸入影響之外，其它海區的pcdd / fs來源均可認為是由大氣輸入。

All these should be avoided we simulate and experiment on one cdd - 23 induction motor and add a temperature equalizing link which can equalize the variation of rotor time constant due to the temperature

本文在一臺cdd - 23型異步電機的基礎上進行了模擬和實驗工作，增加了溫度補償電路對轉子時間常數進行補償。

In the cdd ( common data dictionary ) message files, the word node is sometimes used as a generic name for dictionary directories, subdictionaries, and objects

在公共數據字典（ cdd ）信息文件中，有時用位元組點作為字典目錄、分字典和目標程序的類屬名字。

In the cdd ( common data dictionary ) hierarchy, subdictionaries function almost exactly as if they were dictionary directories, but they exist as physically separate dictionary files

在公共數據字典（ cdd ）分級結構中，子字典功能差不多與字典目錄類似，但是子字典是作為物理上獨立字典文件而存在的