零壓區 的英文怎麼說
中文拼音 [língyāqū]
零壓區
英文
region of no pressure-
( 4 ) the experiment of asymmetrical half bridge converter design and the result of it base of the above analysis, the dc / dc converter is designed, it is proved that asymmetrical half bridge can realize zero voltage switching when it satisfies the condition of load current and deadtime by the experiment
（ 4 ）不對稱半橋的實驗電路設計及實驗結果基於前面的分析，設計了一個不對稱半橋dc dc變換器的實驗電路，進行了實驗研究，實驗結果證實了在滿足死區和負載電流兩個條件時，不對稱半橋可以實現零電壓開關。The company is located at zhejiang ningbo technology park and it engages mainly in the smelting equipment of magnesium and aluminum allo y, quantitative conveying ana pouring equipment, gas protection device and the magnesium alloy pressure casting parts. the more, it can provide services of technology development, achievements transferring, process revamping, material inspection, computer stimulation, etc. the company is based on the strong technical strength of the military technology and the research institutes and has a large number of senior research personnel. the company owns many patents and know - hows, among which the magnesium alloy smelting, gas protection, quantitative pouringas well as the later on processing technology has reached the world advanced levet. the company sticks to aim of quality first, credit supreme and would like to provide best
公司位於浙江省寧波市科技園區凌雲路199號，是以生產鎂合金鑄件為主業，包括壓鑄低壓鑄造等，並具備技術開發成果轉化等功能的綜合性科技公司，以兵器工業和科研院所的雄厚實力為依託，擁有自主知識產權的多項專利專有技術和國際一流的技術裝備，擁有教授博士碩士等高級專業研究人員數名在鎂合金鑄造產品研製及后續加工方面，我公司擁有技術領先優勢，目前我公司為電動工具汽車摩托車零部件it行業以及軍工方面提供配套產品配套設備技術咨詢與技術服務技術轉讓及聯合開發，還可以進行工藝改造材料檢測檢驗計算機模擬等多項服務Tianjin yingchen precision tooling & mould co., ltd. founded in june 6, 2001, located in tianjin, sectional center of the economic area encircling the bohai sea of north china, is a processing trade enterprise engaging in production of precision injection mould, hardware die mould and components of precision mould as well as manufacturing of standard mould parts and sales service
天津市英辰精密模具有限公司成立於2001年6月，坐落於中國華北環渤海經濟區中心城市天津市，是專業從事精密注塑模具、五金精密沖壓模具設計製造、精密模具零部件，模具標準件加工製造及精密沖壓與精密注塑生產加工和銷售服務的加工貿易型企業。Aiming at characteristics of serious conflict among layers, thin layers developed and scattered distribution of remaining oil, this paper introduces techniques of non - gel fracturing, multi - fractures fracturing, large discharge capacity and large sand amount fracturing, thin layer fracturing and high effective return discharge
摘要針對大慶油田薩南開發區三類油層層間矛盾突出、油層發育薄及剩餘油分佈零散等特點，根據油藏精細地質研究成果，通過個性化壓裂設計，在試驗區三類油層聚驅挖潛過程中，應用了非凝膠壓裂、多裂縫壓裂、大排量及大砂量壓裂、薄隔層壓裂以及高效返排壓裂等配套的工藝技術。( 2 ) each state of the total switching period has been studied in detail, in which the voltage of block capacitor and current of leakage inductance of main transformer and keeping time of each state have been discussed, then the condition of zero voltage switching is attained, which gives theory guidance for setting reasonable dead time, finally, the possibility of zero voltage switching is proved by simulation of saber software
（ 2 ）對不對稱半橋在一個完整的開關周期內各個狀態分析，描述了隔直電容電壓和變壓器漏感電流的變化規律，各個狀態的持，然後得出實現zvs的條件，從而為設置合理的死區時間提供了理論指導，最後用saber軟體進行了模擬，驗證了零電壓開關實現的可能性。According to the mechanism characteristics of the ac motor, with zero - voltage switching technology, the pdm converter mathematical models both the pwm and rectangular wave control mode are given in this paper. and the voltage and current harmonic analysis and the simulation waveforms of the output voltage, current and power are also described respectively
根據交流電機在恆轉矩區和恆功率區的特性，結合零電壓開關技術，分別給出相應的脈寬調制控制（ pwm ）方式和方波控制方式下的高頻交流脈沖密度調制變頻器的數學模型，電壓和電流的諧波分析以及輸出電壓、電流和功率的模擬波形。Based on the assumed vertical displacement of the unit cell and the assumed distribution on the pile - soil interface of the pure friction pile, and using the boundary conditions that there was no relative slipping between pile and soil, the pile decrement was equal to that of soil on the pile - soil interface and that the vertical sheer stress of the unit cell ' s outer edge was equal to zero, the formula for the frictional distribution of the pure friction pile and the formulas for the displacement of pile and soil in the treated area were deduced
通過假定的單元體豎向位移模式和純摩擦樁樁側摩阻力分佈模式，利用樁土間無相對滑移、樁土界面處樁土壓縮量相等和單元體邊界處豎向切應力為零等邊界條件，推導出復合地基純摩擦樁樁側摩阻力分佈的具體表達式，以及加固區樁土壓縮量的計算公式。Kunshan mpts precision mold co., ltd was founded on 2002y, which located on people business park kunshan hi - tech zone jiangsu province. the company to manufacture precision mold and metal stampings. now company hans employee about 200. company has much more the first class customers in world, such as samsung, foxconn, molex, ittcanon. . and so on
崑山金群力精密模具有限公司是一家專業從事精密沖壓模具開發，製造及沖壓金屬零件生產廠家.公司成立於2002年，位於江蘇崑山高科園民營工業區，現有員工總人數200餘人，公司現為samsung ， foxconn ， molex ， ittcanon等數家知名客戶，提供完整配套服務All our products are for export purpose selling to more than 20 foreign countries, winning an unanimous trust from the users in the united states, japan and europe, who have offered us a status of their designated manufacturer of such gauges under their brand name. presently we yearly produce more than 3 million different pressure gauges and more than 10 million pen - type pressure gauges and is listed among the key export commodity manufacturers at the municipal level. since 1986 our company has been confirmed as a contract - respectful and high credit enterprise
公司專業製造精密輪胎壓力計量計及各種壓力表，氟里昂表等。全部產品採用優質的零配件及專用高品質機芯生產，在每道工序的生產中，公司採用全程質量監控，使出廠產品優質率達到百分之百。現有八十餘款品種，產品全部出口，銷往二十幾個國家和地區，在美國，日本，歐洲受到了客戶的普遍信賴，並作為世界著名公司的定牌生產廠家，年銷售額Abstract : in this paper, through stress analysis of region about conical and spherical parts during drawing, a calculating formula of maximum tangential compressive stess in unsupported wall region is deduced. and this is condition of causing internal wrinkle. then on the premise to guarantee not breaking workpiece, a critical calculating formula is presented
文摘:通過對球形和錐形零件在拉深過程中各部分的應力分析，得到了拉深過程中懸空區切向壓應力最大值的計算公式，以此作為引發內皺的條件，在保證工件不被拉裂的前提下，建立了臨界計算公式。However, the entry of foreign retailers has also increased the pressure of competition, weakened the benefits of manufacturers and suppliers, and enlarged the imbalanced regional distribution of liaoning retailing
但是也使遼寧本地零售商業的競爭壓力增大，削弱了製造商與供應商的利益，並加劇了遼寧零售業地區分佈失衡的狀況。分享友人