理論需氧量 的英文怎麼說
中文拼音 [lǐlúnxūyǎngliáng]
理論需氧量
英文
theoretical oxygen demand- 理 : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
- 論 : 論名詞(記錄孔子及其門徒的言行的「論語」) the analects of confucius
- 需 : Ⅰ動詞(需要) need; want; require Ⅱ名詞1. (需用的東西) necessaries; needs 2. (姓氏) a surname
- 氧 : 名詞[化學] (氣體元素) oxygen (o)
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 理論 : theory
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The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites
研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體,需要嚴格控制配方中各種原材料的含量,優化配方;由於粉體活性受預燒條件的影響,所以對不同要求的鐵氧體選擇的預燒條件就不一樣,適當降低預燒溫度有利於獲得較高的起始磁導率,而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求,可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件,本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝,適宜的燒結工藝可以獲得理想微結構和組成,從而得到高性能的鐵氧體材料;而從材料的微結構上來看,要提高材料的截止頻率,就要適當地細化晶粒、增加晶粒內部的氣孔。Secondly, through the survey of expert and the methodology of key success factor ( ksf ), it concludes the concrete ksfs of air product and water processing facility product. the ksfs of air product : brand name, service assurance, marketing network, large scale economic production, r & d ; the ksfs of water processing facility product : quality management, r & d, service assurance and marketing network - thirdly, through the methodology of value chain and core competence embodied with defined key success factor and main success factor, this paper analyses and evaluates the internal environment. it points out that air product has these advantages such as quality management competence, r & d competence, service assurance competence, large scale production competence, and has these disadvantages such as marketing network, brand name, cost control
本文首先運用pest分析法和波特的五種競爭力量模型,對奧神公司的臭氧空氣系列產品和臭氧水處理工程產品所處的宏觀環境、競爭狀況進行了分析和評價,認為奧神公司產品面臨著國家產業政策扶持、不斷增長的環保需求、人們對清潔空氣和潔凈水的需求增長等發展機會,也面臨著行業市場不規范、市場競爭激烈、用戶討價還價能力強等威脅;其次,通過專家調查,運用關鍵成功因素理論,分析得出臭氧空氣凈化系列產品市場的關鍵成功因素是品牌建設、服務保障能力、營銷網路建設、規模經濟水平、產品研發能力:臭氧水處理設備市場的關鍵成功因素是質量管理能力、研發創新能力、服務保障能力、營銷網路建設;再次,運用價值鏈理論、核心競爭力理論並結合所確定的關鍵成功因素和主要成功因素對奧神公司產品所處內部環境進行了分析,認為臭氧空氣凈化系列產品擁有質量管理能力、產品研發能力、售後服務保障力、規模生產能力的優勢,同時面臨著營銷網路建設、品牌建設、成本控制能力方面的劣勢。There are some disadvantages in the processing of the materials for the insulation of high voltage power cable in china such as the process equipments are complicate, which need more energy and the process flow is long and so on, we need to intake that vast scale from foreign enterprises yet. in order to change the present status, this paper has successfully developed the materials with new process equipments and new process flow, which are made with compounds containing universal resins of china and assistants such as peroxide, antioxidant and so on
為了改變國內高壓電力電纜絕緣料尚需大量進口和國內研製的高壓電力電纜絕緣料存在加工設備繁雜、能耗大和工藝流程長等不足的現狀,本論文採用國產通用樹脂,加入交聯劑、抗氧劑、加工助劑等,通過物理預混和熔融共混的方法,用國產設備特定的組合和特定的生產工藝,成功開發了可交聯ldpe高壓電力電纜絕緣料。
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