permanent bridge 中文意思是什麼
permanent bridge
解釋
永久性橋-
The construction project for the bridge was included in the 11th five - year plan for guangdong province and vice governor zhong yangsheng announced the plan during a meeting of the permanent committee of the popular congress of the province
粵港澳大橋工程項目是廣東省「十一五」計劃的一部分，副省長鐘陽勝在廣東省人大常委會上宣布了這一計劃。 -
Based on comparison of several motor candidates, doubly salient permanent magnet ( dspm ) motor is a good choice for it ’ s outstanding performance. similar to conventional drive system, dspm brushless dc motor ( dspm - bldcm ) is composed of dspm motor and it ’ s controller. the controller is made up of three - phase full - bridge inverter, driver, dsp control unit and etc. for high power system, every switch of three - phase inverter is actually made up of four mosfets in parallel
在充分考慮國內外不同的液壓泵電動機的基礎上，本文選用了雙凸極永磁電機作為整個系統的電機本體，並配以電動機控制器（控制器包括三相橋式功率變換器、驅動電路、 dsp主控單元、電流采樣及預處理和位置采樣及預處理等主要部分）組成整個液壓泵電動機系統。 -
4. this thesis introduces the application of rd - 1005 mrfd in hunan yueyang dongting lake bridge and permanent magnetism adjustable assemblage mrfd in changsha hongshan bridge and changsha liuyang river bridge. the studies on cable vibration mitigation field tests in these bridges are presented
4 .介紹了湖南嶽陽洞庭湖大橋上安裝磁流變阻尼器的情況，在長沙洪山大橋、長沙瀏陽河大橋全橋拉索上安裝了永磁調節裝配式磁流變阻尼器，並進行了現場拉索減振試驗研究。 -
A working group for hong kong - zhuhai - macau bridge was set up in 2003 to coordinate the project and later the authorities from all three areas agreed to create a permanent office in canton and ordered an economic viability study, an environmental impact study and a report on the locations for placing the bridge ' s supporting pillars
2003成立了粵港澳大橋工作組來協調該工程，后來三方都同意在廣東建立常駐機構，並要求做經濟可行性研究、環境影響研究、以及一份關于橋梁支柱位置的報告。 -
You ' ll wear a temporary plastic bridge while your permanent bridge is being made
在製作假牙期間，您要戴暫時的塑料假牙。 -
Relocation of lo wu railway bridge the existing lo wu bridge has been relocated downstream of the temporary bridge to facilitate the construction of a new permanent bridge
政府已將現有羅湖鐵路橋遷移到臨時鐵路橋的下游位置，以便在原址興建一座新的永久鐵路橋。 -
" with the railway line successfully switched over to the temporary bridge, the existing lo wu railway bridge can be dismantled to facilitate the construction of a new permanent bridge at the same site. it is anticipated that the line will be switched over to the new permanent bridge in early 2004, " said the spokesman
發言人說：鐵路線成功轉行臨時橋后，便可拆卸現有的羅湖鐵路橋，在原址重建一座新的永久鐵路橋，預計鐵路線可於二四年年初轉行新的永久鐵路橋。 -
It has become to pass that the permanent load - bearing capacity of the large - span pc ( prestressed concrete ) continuous rigid frame bridge constructed with the cantilever site cast construction method keeps cutting down in service
採用懸臂澆築施工法施工的大跨pc連續剛構橋，在使用中其持久承載力不斷地降低已成為事實。 -
In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system
在實時控制系統的設計中，本文以三相全橋mosfet逆變電路作為實時控制主電路，採用120導通方式結合半橋pwm調制的控制方案，從而有效地避免了橋臂的直通短路；本文用單電流傳感器實現對相電流的檢測，來自位置傳感器的三相位置信號不僅為逆變電路提供換相信息，而且也用於基於信號周期測量的轉速檢測，這樣就省去了速度傳感器；系統採用的是速度、電流雙閉環控制策略，力求構建高性能的稀土永磁無刷直流電動機全數字實時控制系統。
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