elongation control 中文意思是什麼
elongation control
解釋
延伸控制- elongation : n. 1. 延長，伸長；延長線；伸張度。2. 【天文學】距角。
- control : n 1 支配，管理，管制，統制，控制；監督。2 抑制（力）；壓制，節制，拘束；【農業】防治。3 檢查；核...
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Root elongation in hydroponic solutions showed that the transgenic plant have increased al tolerance. the transgenic plants have higher relative root elongation under 20umol / l al stress than untransformed control
根相對生長量實驗證明轉基因植株具有一定的鋁耐受性，在20 mol l的al ~ （ 3 + ）濃度下比對照具有更高的根相對生長量。 -
The ginger ( zingiber officinale ) plantlets cultured in triangle vessels under photoautotrophic micropropagation were vigorous and 1. 4, 1. 5, 1. 7 times in leaf number, dry weight, and stem elongation compared to those culutred under conventional micropropagation, respectively. 5. some improved suggestions were shown based on the disadvantages of the environmental control system in the closed tissue culture system
利用該環境控制系統，在三角瓶容器中採用光獨立組織培養的生薑組培苗長勢粗壯、品質高，其新增葉片數、干鮮重和株高的增加分別為常規組織培養的1 . 4 ， 1 . 5和1 . 7倍。 -
In this dissertation, the development survey, research actualities and application prospect of vamt are introduced at first, and the models of kinematics, dynamics and linear motor servo are analyzed then. currently the dynamics model is complex or established mechanically, which restricts the study of control theories. thus this dissertation present a simple and easy - realized control idea, namely, the fore and torque of every leg determined by the inverse - solution of mechanics are regarded as changeable load force ( disturbance ) applied in motor, the elongation of the leg or displacement of sliding is regarded as the output of linear servo system
本文首先介紹了虛擬軸機床的發展概況、研究現狀和應用前景，然後對其運動學、動力學、直線伺服系統模型進行分析，針對目前動力學模型過于復雜或完全從機構學角度建立不便於控制的問題，提出了簡單、易於實現的控制思想，即將虛擬軸機床的動力學方程反解所確定的各桿受力（矩）視為電機的可變負載力，以桿長伸縮量或滑塊位移為伺服系統輸出，從此構成位置閉壞，實現軌跡跟蹤控制。 -
In this study, we first constructed a vector containing human elongation factor la subunit promoter ( pef - 1 ) for transcription of genes of interests, and mouse dihydrofolate reductase ( dhfr ) gene under control of sv40 promoter ( psv4o ) for clonal selection and amplification. the vector was named ped5
本研究首先構建了含有人延伸因子1亞基啟動子（ p _ （ ef - 1 ） ）和小鼠二氫葉酸還原酶（ dhfr ）加壓擴增基因的表達載體ped5 ，用於外源基因的常規表達。
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