The great bearing interval was regarded as optimum time, and optimum method for plus tree selection was put forward by the analytical results.

提出了以定期结实年数和定期结实枝平均生长量为标准的优树选择方法。

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This paper discussed the evolvement characteristics of sand bodies of the fourth coal bearing interval and its influence on No. 13-1 coal-seam thickness in Huainan coal field.

讨论了淮南煤田第四含煤段砂体的演化特征及其对13 - 1煤层厚度的影响。

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To certain extent, therefore, the thickness of the oil-bearing interval as well as the volume and permeability of the fracture porosity are also influenced by principal curvatures.

因而油层厚度及与之有关的裂缝孔隙体积和渗透率也在一定程度上受到构造面主曲率的影响。

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