您要查找的是不是:
- Harmonic influence and resolvents on DC electric drive system of oil drilling rig 石油鑽機直流電驅動系統的諧波影響及其解決方案
- OPTIMAL CONTROL PROBLEMS OF DC ELECTRICAL DRIVES 電力拖動的最優控制問題
- A series of advanced technologies are applied,e.g.,DC electric rig,stepless speed regulation pump and top drive system,steerable drilling system,powerful downhole motor,and advanced drill bit. 該井採用了直流電動鑽機、無級調速泵及頂部驅動裝置、導向鑽井系統、大功率優質馬達、優質鑽頭等一系列先進工藝,經科學論證與施工,取得了滿意的效果。
- Can electric drive challenge high-power shuttle bus? 電力驅動能挑戰大功率豪華轎車嗎?
- This paper describes the study and development of magnesia carbon refractories for DC electric arc furnaces. 本文闡述了直流電弧爐用鎂碳質耐火材料的研究及發展。
- The quenching microstructure of low carbon steel after austenizing with and without DC electric field was studied. 研究了低碳鋼在直流靜電場中進行奧氏體化后淬火的顯微組織。
- The disposition of AC filter compensator of 70 t DC electric arc furnace of Xinjiang Bayi Iron &Steel Group Co. 敘述並分析了新疆八鋼70t直流電爐交流濾波補償裝置的配置構成和補償后電網電能質量的性能測試情況。
- It describes the inspection,test,repair and experiment method after one time coil seriously burned out of Lincoln DC-1500 DC electric welder. 敘述了美國林肯DC-1500直流電焊機變壓器一次線圈嚴重燒壞后的檢查、測試、修理及試驗方法。
- This paper describes how DC electric field enhances oil flow, in creases water injectivity and disposes formation plug.It also giv... 介紹了直流電場強化油流、增強注水能力、解除地層堵塞技術,探討了技術機理。
- The range of Liebherr electric drive mining trucks are designed and built in Virginia, USA. 利勃海爾電動礦用卡車系列在美國弗吉尼亞州設計和製造。
- The electric drive system is made detachable for ease of transportation and installation. 為了便於運輸和安裝,電力驅動系做成可以拆卸的。
- Under the external AC and DC electric field, the effective nonlinearresponses and local potentials are induced by the cubic nonlinearity of Kerr materialsat all harmonics. 在外加直流電和交流電混合電場的激發下,各諧和頻率下的有效非線性響應和相應的電勢都可以被這種Kerr型複合介質的立方非線性特性所感應出。
- The electric drive system, dubbed Hi-Pa Drive, packs four permanent magnet brushless motors with one in each wheel. 電動驅動系統,被稱為高新技術壩道,包四永磁無刷電機在每個車輪。
- I like idiots like sit at home and not use electric drive television, the brain actually is very ambiguous. 我像個傻瓜似的坐在家裡,不開燈開著電視,腦子裡卻是模糊不清的。
- In 2007,Bosch Rexroth Electric Drives and Controls ( ShenZhen) Co. 在全國主要大中城市設有十八個辦事處和四大維修服務中心。
- This article presents the application of IGBT-PWM regulating speed system in machine tool's electric drive. 機床電力拖動系統採用集成電路實現脈寬調製方式調速用IGBT管驅動電動機。
- This paper presents the results of study on work of current inverter in asynchronous electric drive. 研究了基於自動電流逆變器的非同步電力驅動裝置的運行問題。
- An electrical drive element (transistor) for a single signal on a PCI device. 用於PCI單一信號的電氣驅動器件(晶體管)。
- The self-oscillations in a hybrid liquid crystal optical bistable device due to the competition between the DC electric field-induced drift of ionic charge carriers and molecular reori-entation in the liquid crystal are observed experimentally. 在液晶混合光學雙穩裝置中,實驗上觀察到了由於直流電場引起的液晶中離子電荷飄移與液晶分子再取向之間競爭相互作用導致的自脈衝振蕩現象。
- Using 4 V DC electrical action,the possibility of the solid proton electrode,antimonic acid, gettering of tritium from air is investigated. 用銻酸作消氣材料,壓製成消氚電極,在適當外加條件下,考察了銻酸作消氚材料直接將含氚廢空氣中的氚除去的可能性。