納氏對數 的英文怎麼說
中文拼音 [nàshìduìshǔ]
納氏對數
英文
napier log-
We mensurate the number of the primary soil microbes such as bacteria, fungi and azotobacter with diluting flat technique, and mensurate the number of cellulose decomposing bacteria with mpn technique, and mensurate the biological quantity of the soil microbes with the technique of chloroform suffocating - inundation culture - colour - compared
本文以長期壟作免耕試驗田為研究對象，採用稀釋平板計數法測定了土壤中主要的微生物細菌、真菌、自生固氮菌數量，用mpn （最大或然值法）測定纖維素分解菌的數量，採用氯仿熏蒸?淹水培養?納氏比色法測定微生物生物量。With the consideration of the vertical wave effect of soil and soil - pile interaction, an approximate analytical solution to vertical vibration of pile system with variable impedance in visco - elastic layered soil is developed. a simplified and practical mathematical model for interaction between soil layers is proposed, and its applicability is theoretically investigated. based on this model and by using laplace transforms and the transmit property of impedance function, the analytical expression of the impedance function and solutions of the displacement and velocity response function in frequency domain and in time domain at the pile head are derived
4 、從三維軸對稱土模型出發，對考慮樁土耦合作用、土層層間聯系以及樁周土豎向應力梯度變化條件下的成層粘彈性土中完整樁及變阻抗樁系統縱向振動問題進行了研究，提出了成層土中變阻抗樁系統縱向振動問題的近似解析解法和樁周土層層間相互作用的簡化而實用的數學模型，並利用拉氏變換和阻抗函數的傳遞性，獲得了成層土中任意段變阻抗樁樁頂阻抗函數的解析表達式，以及樁頂速度導納和時域速度響應解析解和半解析解。" if hong kong adopts the country standard for china, dtt related consumer products produced for the vast market of china and hong kong would be much less expensive than if they were produced just for the small market of hong kong, " mr. kwong continued
鄺氏續稱：倘若香港采納中國內地數碼地面電視廣播的全國標準，那麼銷往整個內地及香港的相關消費品都會較只針對香港市場的為便宜。
分享友人