tractor time 中文意思是什麼
tractor time
解釋
拖拉機工作時間-
Just in time, we moved a tractor with a cable in that direction ; the tree began to fall, and as we pulled with the tractor, the tree descended approximately one centimeter past the corner of the roof
就在千鈞一發之際，我們啟動一臺拉著纜線的牽引機，按照師父指示的方向拉去，接著樹就開始倒下了。由於我們用牽引機拉動，這棵樹倒下時只從屋頂邊沿閃過，其間大約只有一公分之差！ -
Many experts and researchers have made great efforts in a long time. this paper is from the study of theory, analysis the particularity of electrical tractor loads
本文從理論探討的角度出發，深入了解了國內外對電牽引系統多諧波源隨機諧波電流疊加問題的動態，分析了電牽引負荷諧波的分佈特性。 -
The acceleration time process of road surface plainness is got by using two integral calculus of the acceleration time process which is measured by five - wheel equipments. this data is worked as the input of the road surface for theoretical calculation. the result of experiments mostly fits that of calculation, and then the multiple - acceleration power spectrum distribution of the artillery and tractor are acquired
在瀝青路面、破損鋪磚路和砂石路面上以不同速度進行了平穩隨機激勵牽引試驗，用五輪儀測量得到的加速度時間歷程進行兩次積分的方法得到路面不平度的時間歷程做為路面輸入進行對應的理論計算，試驗結果和計算結果基本相符，得到了火炮和牽引車多個加速度功率譜分佈。 -
The pictures of probabilistic characteristic in both sides of impendence matching balance transformers are drawn, and probabilistic density figures are also given. the simulation model of shaoshan 4 electrical tractor is raised, at the same time facing the restriction of probabilistic method, the paper raised that using monte carlo simulation absorbed harmonics currents of the model of electrical tractor and simulated the superposition of low harmonics currents. through compared with real time data, the monte carlo simulation can be confirmed, and the breakthrough point of restriction of using probabilistic method is discussed
為了有效模擬機車在運行中所產生的諧波電流，本文在matlab的平臺空間中建立了韶山4型電力機車的模擬模型，導入到matlab運算程序中，對低次諧波電流疊加進行模擬，從而證實了蒙特卡羅模擬法仍然是目前較為可靠可行的方法，同時討論了在電牽引系統中針對低次多諧波源疊加使用基於中心極限定理的概率分析方法必須使用相關參數進行修正，即需要和電力機車的帶電運行方式有機的結合在一起。 -
If detect via concerning an orgnaization hind, produce tractor dry mass of building principal part really unqualified or the situation that building quality affects a building badly to be used normally, the person that buy a house can ask to return a house, can ask to develop business to undertake responsibility of breach of contract at the same time
假如經有關機構檢測后，確實發生房屋主體結構質量不合格或者房屋質量嚴重影響房屋正常使用的情況，購房者可以要求退房，同時可以要求開發商承擔違約責任。 -
Based on the facts in our country, this paper raised that the method of probability should be used in electrical tractor system. and at the same time, the main problems and availableln of this method. based on matlab, the model of probabilistic method and monte carlo simulation in superposition multi - harmonics sources are compared
與此同時，探討了目前國內外對該問題處理所使用的方法的局限性和缺陷，針對本國的電牽引系統的實際情況，提出了在電牽引系統的多諧波疊加中使用基於中心極限定理的概率分析方法，指出針對高次諧波運用該方法的可靠性和對低次諧波不能有效模擬的原因所在。
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