傳統起降型 的英文怎麼說
中文拼音 [zhuàntǒngqǐjiàngxíng]
傳統起降型
英文
ctol- 傳 : 傳名詞1 （解釋經文的著作） commentaries on classics 2 （傳記） biography 3 （敘述歷史故事的作品）...
- 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
- 起 : 起Ⅰ動詞1 （站起; 坐起） rise; get up; stand up 2 （取出; 取走） draw out; remove; extract; pull 3...
- 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
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A port tyre crane has various parts and complex structure, which is made up plenty of beam - bar and shell elements, manual calculation can not guarantee the precision while finite element method needs onerous structure modeling and a great deal of date input. the finite element analysis and modeling of the port tyre crane are difficult because of complex structure and various loads. in order to fit further more design and exploitation of the same type as well as the upgrade of the production i study a kind of parametric software for structure analysis of the port tyre crane, it can reduce the difficulty of modeling and structure analysis as well as improve efficiency
港口輪胎式起重機部件繁多、結構復雜，由數目眾多的梁桿與板殼組成，其結構設計和力學分析使用傳統的手工計算方法難以保證精度，有限元方法則需要繁重的結構建模和大量的數據輸入，並且要求分析人員具有相當的力學知識和有限元基本理論。港口輪胎起重機結構的復雜性、載荷工況的多變性導致港口輪胎起重機結構有限元建模和分析工作效率低、難度大。針對這種情況本課題研發了一套港口輪胎式起重機結構的有限元參數化分析軟體，以適應同類機型的進一步設計開發和產品升級換代，降低建模和分析的工作難度，提高工作效率。Soft starters decline only the electric voltage and do not decline the frequency, and make the starting torque turn small, therefore the soft starters be applicable only to the induction motors which drive the low starting torque machine such as blower fan and pump. this paper designed a soft starter adopting the discrete frequency method to start induction motors. it declines not only the electric voltage, but also makes the frequency lower at the same time, so starting torque turns more
由於軟起動器只降壓不降頻，電機的起動轉矩較小，所以傳統軟起動器只適用於風機、水泵類低起動轉矩的負載。本文設計並研製了一種採用分級變頻方法的新型軟起動控制器，在降壓的同時實現有級變頻，從而提高了異步電動機的起動轉矩。The reason is lain in : first, chinese - is retrained by the inform system - which heavy blood relationship, heavy human feeling - the reducing making the small and medium - sized enterprise can decease the expenses of financing obviously under the condition of scarce sound credit system ; second, the smalls and medium - sized enterprise of our country mostly adopt the labor - intensive mode of production in conformity with natural endowment characteristic of resource of our country, whose ability of surviving is strong
原因在於：一、中華民族特有非制度約束? ?一既重血緣、重人情? ?一使中小企業在融資活動中能明顯的降低因信用體系不完善所帶了的高額交易費用；二、我國中小企業大多採用與我國資源稟賦特徵相適應的勞動密集型生產方式，生存能力強。但是，傳統計劃經濟體制是在優先發展重工業的「趕超」戰略下發展起來的，因此大企業在經濟體系中處于核心地位。
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