控制減壓 的英文怎麼說
中文拼音 [kòngzhìjiǎnyā]
控制減壓
英文
controlling decompression-
The argos regulator is an extremely versatile flow control device for gas applications where pressure reduction is required excellent in performance and easy maintenance are beneficial
Argos減壓閥是一非常多用途的流量控制裝置，對瓦斯氣體要求精確減壓控制與維護簡單的使用尤其具效益。Making the use of impact compaction technique to treat roadbed can assure the degree of compaction of roadbed banquette further, and reduce the sedimentation of roadbed
利用沖擊壓實技術處理路基，可以進一步保證路基填土壓實度指標的控制，減少路基工后沉降。The thesis is devoted to exploiting a permanent magnet synchronous machine ( pmsm ) for the parallel hybrid electric vehicle ( phev ). three parts are included as follows : at first, in the electromotor state, the current control strategies of pmsm are determined. giving the elementary method for solving the contradiction between enhancing the pmsm ' s flux - weakening capability in the electromotor state and reducing the pmsm ' s connatural adjustment ratio in the dynamotor state
本課題的研究工作主要圍繞開發一臺並聯式混合動力電動汽車（ phev ）用永磁同步電機（ pmsm ）展開，所作的工作主要包括以下幾個部分：首先，確立了phev用pmsm電動機運行狀態時的電流控制策略，針對pmsm在電動機運行狀態時提高弱磁擴速能力和在發電機運行狀態時減小固有電壓調整率的相互矛盾，提出了初步的解決方法。This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective
本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷，利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法，提出了在液壓系統中加一個定差減壓閥的新思路，較好地解決了液壓伺服系統存在的上述問題。The 1mhz fixed frequency switching allows for tiny external components and the regulation scheme is optimized to ensure low emi and low input ripple. an external resistor sets the full - scale led current, while two digital inputs control on / off and select amongst three levels of brightness. the circuit operates in 1x mode until just above dropout
工作在1mhz固定頻率，採用線性調制模式使輸入紋波大大減小;利用一個外部電阻可以設置滿量程led電流;外接兩個數字信號控制晶元開關並選擇led三級亮度中的一級;具有過溫、過壓/欠壓等保護功能，工作溫度范圍為- 40 + 85 。The air - flow field in the stripping unit can be adjusted easy by changing the rotation speed of fan which is benefit to reduce the grain losses, it was found during experiment that the cross - flow fan can diffuse some of mog ( material other of grain ) and diffuse it in a certain direction which is useful to satisfy the working condition for driver and lighten working load of the threshing unit of the combine harvester candidate and speciality : peng shengmin ; machinary design and theory supervisor : prof. zhang huiyou
該裝置可以通過控制橫流風機的轉速，使裝置內氣流在有控制的情況下排出裝置外，改善了裝置內流場狀態，提高了裝置喂入口處的負壓，這對減少摘脫裝置的落粒損失，有著重要意義。由於橫流風機的除雜，可以減輕機器的復脫和清選負荷。安裝橫流風機后可以對裝置的出風口處灰塵進行有效導引，改善駕駛員的工作條件。The algorithm of svpwm that is adopted by the system implements motor speed - regulation by control of magnitude and phase of motor flux. it can generate less harmonics in the output current of power inverter and less losses of ac motor, reduce pulsant component in output torque and raise availability of dc supply voltage
系統採用的svpwm演算法通過對空間磁鏈矢量幅值和相位的控制來調節電機轉速，減少了逆變器輸出電流的諧波，降低了脈動轉矩，提高了電壓的利用率。( 2 ) aiming at the requirement of safe storage of the electronic documents on the information integrated platform in manufacturing enterprise, using encryption / decryption and compression / uncompression techniques and saving the electronic documents as some special attribute object of large database and managing the enterprise electronic documents effectively through database, a safe access mechanism of functional grant < wp = 7 > and recommendatory grant to decrease grant management maintenance cost is proposed and the storage mechanism of special database attribute object is studied and the method for saving, accessing and retrieving electronic document quickly is constructed. thus these methods can make the electronic documents of information integrated platform in manufacturing enterprises get safe, reliable and quick access. ( 3 ) according to this circumstance in which web pages are selected as the user interface of manufacturing application system, the safe measures of access control over web page resources are provided
（ 2 ）針對製造企業信息集成平臺中電子文檔安全存儲要求，採用加密和壓縮技術，將電子文檔作為大型數據庫中某種特殊屬性對象來存儲，以數據庫方式對企業電子文檔進行集成的、統一的管理，提出一種訪問控制的增強型安全設計原則，基於此原則建立了管理授權和推薦式授權的安全訪問機制，用以提高系統的訪問安全性，並大大減少授權管理維護量；研究了特殊屬性對象的數據庫存儲機理，從而構造一種快速存儲、訪問和檢索電子文檔的方法，使得企業信息集成平臺的電子文檔獲得安全、可靠、快速的訪問。The feedbacks of position, velocity, acceleration and dynamic pressure were applied to adjust the model, so the control system of single jar electrodraulic servo mechanism was built. to reduce the system error and interference error, the compound control was designed. the results of simulations showed that the magnitude attenuation and phase lag of the system come to the project demand
引入包括位置反饋、速度反饋、加速度反饋和動壓反饋在內的反饋控制技術對電液伺服驅動機構模型進行綜合校正，從而建立單缸電液伺服控制系統，並在分析系統誤差和擾動誤差后，加入復合控制減小系統誤差和抑制干擾，模擬結果表明復合控制系統的控製品質有了明顯改善，能夠滿足工程需求。The diagnostic analysis for the sandstorm process on the base of height, temperature, pressure and wind etc output from the model shows that the upper cold trough, low - level wind shear, surface cold anticyclonic ridge, mesoscale cyclone and cold front are the main synoptic systems, surface cold anticyclonic ridge and cold front provide condition of wind force to occurrence of the sandstorm weather, the strong mesoscale cyclone before front makes pressure gradient before and after cold front obviously strengthen, moreover, and it increases obviously the temperature of the controlled area, as a result, the updraft movement caused by convergence before front strengthens
500hpa強鋒區、 700hpa切變和鋒前中尺度系統的強弱及位置變化是沙塵暴天氣發生發展到減弱的直接原因。地面冷高壓、地面氣旋及冷鋒是造成本次沙塵暴天氣的主要地面天氣系統。地面冷高壓及冷鋒為沙塵暴天氣的發生提供了風力條件，而中尺度氣旋使冷鋒前後氣壓梯度明顯增強外，又使所控制的區域增溫明顯，使鋒前輻合上升運動加強，為沙塵暴天氣的發生提供了熱、動力條件。Accordingly, using graph theory and operating experience abroad for reference, it firstly brings forward a new method of voltage rectification which based on pilot bus with voltage control area in view of the weak coupling among every vca ( voltage control area ), using decomposing method of multi critical value, it realizes the eliminating vinculum of every vca. and then, the rectification starts by pilot bus voltage of every vca. so the resolution of whole power net is diverted into calculating smaller sub - net
由於各個電壓控制區之間無功電壓的弱耦合性，利用多閥值分解的分區演算法，實現區域間的解耦，然後根據各個子網路的主導節點的電壓進行校正，從而把求解整個網路的問題轉化為求解各個小的子網路，降低了網路維數，減少了無功設備控制動作次數，提高了校正成功率，縮短了計算時間。The recovery of atmospheric light oil yield of atmospheric in the northern atmospheric distillation tower of shenghua teaching & test factory, science and technology group of china university of petroleum has been increase by about 4 or 5 percent through the following methods : changing the tray perforation of atmospheric tower, adjusting the amount of stripping steam and the outlet temperature of the atmospheric heater and merging atmospheric excess vapor into 3rd atmospheric drawn - stream to keep the fractions content of bottom oil below 5 % before 350
摘要中國石油大學科技集團勝華教學實驗廠北常減壓蒸餾裝置換煉勝利管輸油后，通過改變常壓塔塔盤開孔率、調節常壓塔汽提蒸汽量和常壓爐出口溫度、常壓過汽化油併入常三抽出線等措施，控制常壓塔底油350前餾分含量小於5 % ，使常壓輕質油收率提高約4 % ~ 5 % 。In order to enhance the precision, this design proposes that temperature - measuring circuit of platinum resistors and software should be employed to carry on adjustment of measured precision ; it also proposes that the interference of the grid can be reduced by the voltage front feed ; and meanwhile it calls for the application of the photoelectric insulation, the over heating protection and alarm so as to enhance the security performance of the system
為了提高精度，本設計還採用了鉑電阻溫度測量電路，並利用軟體對測量精度進行自校準；通過電壓前饋控制減少電網干擾。此外，設計中還加入了光電隔離措施及過熱自動保護和報警功能，以增強系統的安全性能。3. the new microwave power supply ( mps ) can work in vacuum and its power measurement is convenient. the output power could be adjusted with the change of control voltage, and the reflecting power could be gotten by measuring the output voltage of attenuator and detector
（ 3 ）可在真空下穩定工作的新型微波源功率的測量較為方便，通過改變控制電壓的大小可以調節輸出功率，通過測量衰減檢波器的輸出電壓信號可實現反射功率的測量。This testing system is based on the pxi bus virtual testing system. there are many secondary types of equipments in the system. such as the programmable power supply, high voltage probe, high voltage relay, high voltage load and pneumatics
本文以pxi總線虛擬測試系統為核心，輔以程式控制電壓源、高壓衰減探頭、高壓繼電器、高壓放電負載及氣動裝置，分別設計組裝了主機櫃與測試櫃，完成整個自動測試進程。The primary measures for control precept are : sufficiently and effectively utilizing the the air compressors " interior data, realizing online surveillance and alarming for failure of the the air compressors " running interior parts ; letting the air compressors running by master and slave manner, by reasonable arranging the alignment of the air compressors, making the masters yielding pressed air and the slaves adjusting the pressure of the air. this decreases the times of loading and unloading greatly and the decreased failure of air compressors and low maintain ; at the same time we adopt abundant value of the set pressure for stabling the compressure. the air compressors become loaded or unloaded ahead by the abundant value ; caning unloading control for saving power, when the air compressors get along with unloading for a while, the system will stop them ; consummating the purposes for control, enhancing offline control for over - press and low - press, continual loading control and unloading control
經過分析研究，針對原來存在的問題，在控制方案上主要的改進措施有：充分、有效地利用了空壓機的內部參數數據，對空壓機的內部部件的運行情況實現了在線監視及故障報警；對空壓機採用了主、輔結合的運行方式，通過對空壓機加、卸載隊列的合理排序，使空壓機自動實現主機產氣、輔機進行氣壓調節，減少了空壓機的加載和卸載次數；在壓縮空氣壓力的穩定上進行了裕量控制，在壓縮空氣壓力不到供能品質所規定的上、下根就根據一定的裕量提前進行卸載和加載操作；在節約電能方面對空壓機進行了卸載停機控制，當空壓機在一定時間內一直處于卸載狀態，系統就認為該空壓機沒有運行的必要，自動將其停機；完善了控制效果，增加了超壓低壓脫網控制、連續加載控制、連續卸載控制等功能。Good control of blood pressure can slow the rate of deterioration and delay the need for dialysis by 3 years
妥善控制血壓能減慢腎損壞的速度並將需要洗腎的時間推遲三年。This is achieved by utilising a torque transfer differential which is controlled by various sensors and an electronic control unit ( ecu ) to enable a difference in torque to go to each of the rear wheels
感應器根據收集到的轉向角度，油門大小，車輪轉速，前後，側向加速力等信息經過計算后，電腦控制油壓系統介入，推動差速器里的離合裝置，把驅動力誘導到一組減速齒輪，從而改變左右輪驅動力。Compare to the operation under the dcm mode, the power switches of the inverter under the ccm mode has lower peak current and rms current, so the efficiency can be improved. as the synchronous rectification strategy can reduce the conduction losses of the rectifier, and also due to the zvs realization of all synchronous rectifiers, the
採用非互補導通控制，在ccm模式下由於功率管電流峰值和有效值的減小，逆變器變換效率較dcm模式下有所提高;另外， ccm模式下，反激逆變器採用同步整流控制，減小了整流二極體的導通壓降，並且電路中同步整流管可實現零電壓開通。Soundless pressing cnc makes the punch, driven by hydraulic pressure, shift during the work cycles to achieve the process of soundless press, that is to say, the punch die gets close to the material fast, and it penetrates the material till the material breaks, then the punch springs back quickly to reduce noises and vibration and assure the high production efficiency at the same time
靜音沖壓cnc控制液壓驅動的沖頭在工作循環中變速，實現靜音沖壓，即凸模快速接近材料，接著緩慢進入材料直到斷裂完成，然後沖頭快速返回，以減少噪音和震動，同時保證了較高的生產效率分享友人