double limiting 中文意思是什麼
double limiting
解釋
雙向限幅-
Quinic acid, used shikimate pathway in e. coli, it is necessary to extend metabolic pathway by introduction of a heterogenous gene qutb into the host cell. double specific enzyme genes arog, qutb or three ones arog, qutb, arob were co - expressed in a single plasmid pbv220 to improve the enzymes " rate - limiting reactions. modifications of e. coli chromosome by both disruption of the arod gene and directed - site insertion of the arob gene resulted in the change of carbon flow redirected into the quinic acid biosynthesis branch
利用大腸桿菌莽草酸途徑合成新的代謝物奎尼酸,須在宿主細胞引入異源酶基因擴展代謝途徑;串聯表達酶基因,同時適量增加不同種屬的多個關鍵酶酶量,改善限速反應;利用同源重組進行基因整合和基因破壞,改造染色體結構定向改變微生物代謝途徑;目的是將碳代謝流最大程度的引向奎尼酸生成的方向。 -
Dwls double weight limiting speed governor
雙錘限速調整器 -
Meanwhile, combined with the scheme of double interlocking range - limiting burning, reasonable ratio of air and fuel is guaranteed under the premise of controlling main circuit ' s temperature
同時,又將神經網路自適應pid控制器與目前較為先進的雙交叉限幅燃燒控制方案相結合,在保證主環溫度控制的前提下,又保證了空氣和燃料的合理配比。
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