selective coefficient 中文意思是什麼
selective coefficient
解釋
選擇系數- selective : adj. 1. 選擇的；挑選的；有選擇性的；淘汰的。2. 【無線電】選擇性的。adv. -ly
- coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
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3. the trapping characteristics of ordinary helical gear pump are lucubrated by theory for the first time, the theoretic relation of the gear rotor between the end overlap coefficient and trapping phenomenon is discussed respectively with clearence or without clearcence, and the relation of trapping volume with the rotational angle turn is also discussed. the selective range of the helical angle that can eliminate completely the trapping of helical gear pump is gained, which never appeared in literature before
首次對普通斜齒齒輪泵的困油特性進行深入的理論研究，分別討論了有側隙和無側隙時普通斜齒齒輪泵轉子的端面重合度與困油現象之間的理論關系，以及困油容積隨轉角的變化關系，得到了完全消除斜齒齒輪泵困油沖擊的螺旋角機械科學研究院博士學位論文的選擇范圍。 -
Semiconductor materials was laid on the base, and the corresponding electrode was lead to. the semiconductor material has selective adsorption to the gas that changes the electronic concentration which also raises hall coefficient, corresponding changes the export of hall electromotive force, so the gas sensors which is based on hall effect was made
當我們把半導體材料塗敷到基片上，並引出相應的電極，由於氣敏材料對個別氣體有選擇的吸附特性從而改變了材料中的電子濃度，也就引起了霍耳系數的相應變化，輸出的霍耳電動勢也跟著變化，就製成了基於霍耳效應的氣敏傳感器。 -
The semiconductor material has selective adsorption to the gas that changes the electronic concentration which also raises hail coefficient corresponding changes in the export of hall electromotive force
這種新型傳感器不僅可以根據需要輸出幾毫伏至幾十毫伏甚至幾百毫伏的直流電壓，而且具有其它半導體傳感器所沒有的優點無需另外加熱。
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