柱子的基座 的英文怎麼說
中文拼音 [zhùzidejīzuò]
柱子的基座
英文
the base of a pillar /column-
Since the new china was established, it has set up a complete system of industry and commerce throughout more then 40 years " development. especially after our country beginning reform and open policy, it has made much progress in its economy. now, xiamen has become a beautiful modern city, which has market economic system, good development in public construction, electron, machinery, chemical, instrument, textile, building material, financial and communication service
新中國建立以後，經過五十幾年的建設，廈門市已建立起了較為完備的工商業體系，尤其是改革開放以來，其經濟更是有了飛速的發展，已基本建立起了一座以港口為龍頭、高新技術為先導、以電子、機械、化工、儀器紡織、建材為支柱的且商業、旅遊、金融、電信等配套設施完備、市場經濟較為成熟、經濟交流活躍、人民生活比較富裕的新興城市。On the basis of analysis of design criterion of shaft washer and housing washer of tandem composite type cylindrical roller thrust bearing, we present a mathematic model for optimal design in accordance with line contact requirement for cylindrical roller and race, design the washers thickness and thickness variation angle by the search algorithm of constrained stochastic direction
摘要在分析串聯組合型推力圓柱滾子軸承軸圈和座圈設計準則的基礎上，按滾子與滾道線接觸要求建立其最優化設計數學模型，採用機械優化設計中的約束隨機方向搜索法計算軸圈和座圈的厚度、厚度變化角。
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