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Circling the globe, the boreal forest—its name derived from Boreas, the Greek god of the north wind—comprises one-third of Earth's wooded lands.

环绕地球，那北方森林――它的命名来自北方之神，希腊神的北部风――包含三分之一的地球的多树林平原。

Circling the globe, the boreal forest-its name derived from Boreas, the Greek god of the north wind-comprises one-third of Earth's wooded lands.

环绕地球的北方针叶林，其名字来源于博瑞艾斯---希腊神话的北风之神，它涵盖了地球上三分之一的森林面积。

According to perturbation theory and local Born approximation method, we derived the full DSR migration approaches based on the dual-domain propagators.

在前人研究的基础上，本文首先参照摄动理论和局部Born近似方法，系统地推导了基于双域传播算子的DSR全偏移方法。

On the basis of the frequency domain Born approximation theory of the scattering of two dimentional elastic waves, the time domain Born approximate solution to the scattering of elastic wave s with arbitrary frequencies is derived.

在二维弹性波散射频域Bron近似解的基础上，通过Fourier变换，推导了任意频率平面P波组合的脉冲波入射二维散射系统时，散射场的时域Born近似解。

The stable wave-field propagators of one-way wave equation for Born and Rytov approximations are derived by using the local Born and local Rytov approximation methods in the scatter theory of wave-field propagation, and their application effects in prestack depth migration imaging of wave equation are compared theor...

利用波场传播散射理论中的局部Born近似和局部Rytov近似，分别导出了单程波方程的稳定的Born近似波场传播算子和稳定的Rytov近似波场传播算子，然后从理论和实践上比较了它们在地震数据波动方程叠前深度偏移成像中的应用效果。

A non-segregating F2 population derived from the cross of triploid × diploid in rice. Acta Botanica Sinica.

从农艺性状和分子标记鉴定一个水稻三倍体×二倍体群体的遗传稳定性。

A randomized, double-blind, placebo-controlled trial to determine the effectiveness of botanically derived inhibitors of 5--reductase in the treatment of androgenetic alopecia.

采用随机，双盲，安慰剂对照试验，以确定的效力，植物源性抑制剂5 --还原酶治疗雄激素性脱发。

So,current upper boun d formula can be perfectly replaced by derived upper bound formula.

因此，应该用推导出的公式代替现用公式。

Generalized Darcy's law was first derived from the study of fluid flow through a solid-fluid mixture,and the saturated permeability tensor of a preform could be predicted by studying its unit cell under periodic boundary conditions.

首先，采用均匀化理论分析了流体在多孔介质内的流动问题，推导出广义达西定律，证明以施加周期性边界条件的单胞为研究对象，可以预测预成型体的渗透率张量，并以单向纤维织物为例，对该方法进行了验证。

The boundary contour formulations of evaluatingstresses from the Somigliana stress identity are derived for 2-D problemswith quadratic boundary elements.The boundary contour method basedon the traction boundary integral equation is further discussed.Elasticproblems are first solved using the traction boundary contour method.Amixed collocation of the displacement boundary contour formulation andtraction boundary contour formulation is given.(4)The dual boundarycontour method is developed for the analysis of crack problems.

3建出了Somigliana应力积分式的二维和三维问题的边界轮廓法理论；给立了二维问题由Somigliana应力积分式计算应力的二次形函数的边界轮廓法方程，进而给出了基于面力边界积分方程的边界轮廓法；提出了一种以位移边界轮廓法方程与面力边界轮廓法方程混合配置的方案，首次实现了用两种积分方程相结合来求解弹性力学问题。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。