primary current 中文意思是什麼
primary current
解釋
初級電流-
The current transformer is fully enclosed. the primary and secondary windings and iron core are insulated by epoxy resin. it has a good ability of antipollution and moisture proof
本型電流互感器為全封閉結構，一、二次繞組及鐵芯均澆注在環氧樹脂內，耐污染及潮濕。 -
The current transformer is fully enclosed structure. the primary and secondary windings and iron core are insulated by epoxy resin. it has a good ability of antipollution and moisture proof
本型電流互感器為全封閉結構，一、二次繞組及鐵芯均澆注在環氧樹脂內，耐污染及潮濕。 -
Arcuated built - up system bridges are one of bridge structural styles, which are used extensively at present. on one hand, because of complexity and diversity of this kind of structure, current engineering experiences have not satisfied design requirements no longer. on the other hand, towards this kind of structural system traditional methods simplify complicated structures into planar structures, these methods neglect apparently spatial action among members, especially those primary bearing load members along lateral direction of bridges
拱式組合體系橋梁是目前廣泛採用的一種橋梁結構形式，一方面由於拱式組合體系橋梁結構的復雜性和多樣性，現有的工程經驗已不能滿足設計需求；另一方面對于這種結構體系過去的傳統做法是將復雜結構簡化成平面結構，這種做法顯然忽略了構件之間的空間作用，尤其是沿橋橫向存在主要承力構件。 -
Through quantitative comparison of the salinity, temperature, wind, wave, current, tide, biogenesis elements, and rare elements of coral reef in the coral reef zone of the nansha islands in china with these in the open sea, it is found that the nutrients and primary productivity in the coral reef are several dozen or several hundred times higher than those in the open sea. it is indicated that, given sufficient sunlight, the coral reef eco - environment could provide very intense photosynthesis, thus pointing to the important reason why the coral reef zone is highly productive
根據中國南沙群島珊瑚礁區的溫度、鹽度、風、浪、流、潮、生源要素、稀有元素分析並與礁外海域定量比較，得出珊瑚礁區的營養物質和初級生產力比敞海高出幾十倍到幾百倍，表明只要有充足的陽光，珊瑚礁生態環境就可以提供十分強烈的光合作用，從而證明了珊瑚礁海區高生產力的重要原因。 -
Influenced by the alternating current field, all of the eutectic microstructure of al - 20si - 5fe - ti alloy changed into very small particles which is well - distributed on the base of a - al. electromagnetic stirring stimulates the forming of equiaxed crystal in al - 20si - 5fe - mn alloy. primary iron - phase is transformed from thick needle into smooth block
電磁攪拌促進al - 20si - 5fe - xmn合金中等軸晶的生成，初生富鐵相由原來粗厚的片狀物轉化成比較圓整的塊狀，共晶組織中鐵相主要以較短的針片狀存在。 -
The winding through which a current is passed to produce the primary source of flux in the machine is called the field winding
電流通過其在電機中產生主磁通的繞組稱為勵磁繞組。 -
This testing system is designed according to the germany standard, to test many dynamic parameters in the moment of ignition time. such as the primary coil current, secondary coil current, high voltage and time signal
本文研製的測試系統依照德國標準進行設計，實現對點火瞬間產生的初級與次級線圈電流、電壓及時間等動態參數的測試。 -
In order to know entirely about the students " mental health current condition in northeast far area, and treat the existing questions correctly, develop the mental health education, ducuments, action studying, comparing and experience summarizing ; on the basis of analyzing and summarizing the trend and problems in the development of psychology health job, we investigate and analyse 4451 students mental health condition ranging from grade 4 in primary school to grade 3 in senior school. at the same time, we make an auxiliary investigation of the environmental elements ( condition of school job, condition of teachers " psychology quality, family environment ) that effect the students mental health, and combine with the job experience, we will make an expositions about reginal and practical interference tactics
為全面真實了解東北邊遠地區學生心理健康現狀，正確認識存在問題，從而積極、科學地開展心理健康教育，採用調查法、文獻法、行為研究法、比較法及經驗總結等方法，在分析總結國內心理健康教育工作發展趨勢和存在問題的基礎上，對某地區市、縣、鄉各級各類學校小學四年級至高中三年級共4451名學生的心理健康狀況進行了調查分析；同時，對影響中小學生心理健康的環境因素（學校工作狀況，教師心理素質情況，家庭環境等）進行了輔助調查，並結合工作實踐，對區域性、具有針對性、實效性的干預策略進行了論證。 -
Using contrast and orthogonal experiment methods, the effect of electrolyte formulae for varied concentration of cr03 and technology of chromium plating on coating property was studied systematically in this paper. primary factors and their interrelations, which influence the brightness of coating, the current efficiency, dispersion ability and sedimentation velocity of electrolyte were discovered
本文採用對比試驗和正交試驗等方法系統地研究了低、中、高三種不同鉻酐濃度的鍍鉻液組成和鍍鉻工藝對鍍鉻層性能的影響，找到了影響鍍層光亮度、鍍液電流效率、分散能力和沉積速度的主要因素及其相互關系。 -
The author has finished the following several jobs in core of the centre : 1 ) the active compensation method based on bang - bang control was put forward to realize the wide range current transformer. the method converts the complex statement space to i / o description by the two - stage current transformer. with the compensation method, the accuracy of 0. 2 grade current transformer can be improved to less than the 0. 1 grade standard at 100 % rating when the primary side current is changed from 2 % to 120 % of the rating
圍繞這一工作核心，作者完成了以下幾項工作： （ 1 ）以實現寬量程電流互感器為目標，提出了基於bang - bang控制的有源補償方法，採用雙級電流互感器，將復雜的狀態控制分量轉化為偏差控制，該方法結構簡單，調試方便，有源補償器輸出電流小，可以將0 . 2級的電流互感器經過補償后提高到一次電流從額定值的2變化到120時，測量誤差不超過一次電流額定值100時準確度為0 . 1級的測量標準。 -
Bar primary bushing type current transformer
棒形電流互感器 -
Of the four inclinations in international trade in education, the domination of developed countries in market is apparently the most outstanding characteristics. consumption abroad has the fewest restrictions, while primary and secondary schools encounter comparatively remarkable obstructions in market permission. from its current division and characteristics, we can easily infer its inclination that embraces five points
在現代國際教育貿易市場上，發達國家之間、發達國家與發展中國家之間為擁有教育貿易市場上的最大份額，展開了激烈的爭奪，形成了教育貿易市場上的割據狀態，表現在以跨境提供、境外消費、商業存在和自然人流動形態下的教育貿易發展狀況。 -
Third, the current management system of china ' s trade associations have quite a disadvantage, leading to the dual classification management system is the primary reason the industry associations obtaining independence, but also the difficulties caused by the development of trade associations root causes
三、我國行業協會目前管理體制存在較大弊端，雙重分級管理體制是導致行業協會難以獲得主體獨立性的首要原因，也是造成行業協會發展困難的直接原因。 -
When the secondary circuit is open, the core flux is produced by the primary current only.
當次級電路開路時，鐵芯磁通量僅僅由初級電流產生。 -
Rated primary current
額定原電流額定一次電流 -
Rated accuracy limit primary current of a protective current transformer
保護用電流互感器的準確度限定的額定一次電流 -
Primary current of a current transformer
電流互感器的一次電流 -
Rated instrument limit primary current
儀表的額定極限一次電流 -
Then the volume and weight of the system could also be reduced. the loss analysis shows that the main loss is the loss of primary loop so the effective approach of improving efficiency is to lower the rms value of primary current
通過對靜止變流器損耗的分析得到了原邊迴路損耗達全部損耗的61 . 2 ，為損耗的主要分佈點，提高系統效率的有效途徑是減小原邊電流的有效值的結論。 -
Firstly, design the software phase - closed loops ; secondly, realize the double closed loops control of the instantaneous value and the virtual value. furthermore, the dynamic flux imbalance of the output transformer caused by ordinary pi arithmetic is analyzed in detail. a new solution for flux balance by sampling the instantaneous primary current of the output transformer and introducing the on - line calculated bias current component into the voltage regulation arithmetic is presented
系統軟體實現了ups的各個功能模塊，首先設計了軟體鎖相環；然後實現了輸出電壓瞬時值和有效值雙閉環反饋控制；並且在深入分析基本數字pi演算法所引起的輸出變壓器動態偏磁問題的基礎上，提出了一種改進演算法，實時消除了變壓器的偏磁。
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