常見例句雙語例句After the project upgrading, it is difficult to make assessment on foundation permeability only based on the results from field test.工程擴建加高，僅依據(jù)現(xiàn)場試驗結果，對地基滲透情況作出評價更為困難。In this new test theory, by introducing parameter M, a mathematic model was established based on the Ohm law and the cylinder form conductor magnetic field permeability formula.通過引用通用函數(shù)M，根據(jù)歐姆定理和圓柱形導體的磁場滲透公式建立了數(shù)學模型，并設計了相應的絕對式渦流傳感器及其檢測方法。It is an important content for the feasibility study of nitrogen injection in Zhongyuan oilfield to put up a pilot field test of nitrogen injection in low permeability oil reservoir.低滲透油藏氮氣驅礦場試驗是中原油田氮氣驅可行性研究的重要內容。 返回 field permeability test