changeover period 中文意思是什麼
changeover period
解釋
轉換時間- changeover : n. 1. 改變，轉變；變更，轉換。2. （電影換片時的）換機放映。
- period : n 1 時代；期；時期；期間；階段。2 〈the period〉現代，當代。3 周期；【地質學；地理學】紀。4 終結...
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The control system of mould level is crucial to improve the slab quality in the continuous casting process, pid controller is used in the traditional mould level control, and it has some defaults, such as : at the start - up or finishing period of casting or during the changeover of tundish, pid control has a bad effect, its overshoot is large and its transient time is long ; the erosion of the tundish stopper and the submersed nozzles lead to the accuracy of control become bad ; the abrupt falloff of block in the submersed nozzles makes the level acutely fluctuate, and pid control can not overcome the disturbances resulted from the change of casting speed
結晶器液位控制系統是提高連鑄產品質量的關鍵環節，傳統的連鑄機液位控制方法採用常規的pid控制，存在如下不足：開始、結束澆注和換中間罐澆注時，控制效果差，超調量大，過渡時間長；塞棒頭和浸入式水口被腐蝕后引起控制精度差；浸入式水口堵塞物的突然脫落所引起的液位劇烈波動；無法克服拉速波動引起的擾動。 -
We shall have a similar operation during the millennium changeover. we shall all need to make sure we bring in plentiful supplies of snacks in preparation for that event because the centre will be open for a longer period during a cooler season
在過渡千禧年期間，協調中心也會按類似的形式運作，屆時天氣會較冷，運作的時間也較長，所需的資源肯定會更多。 -
In addition, 29 aircraft flew from kai tak to the new airport during the overnight changeover period on july 5, 1998
另外，在七月五日，新機場開幕的前一晚，總共有29架飛機從
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