Study on 2-D finite difference method on the center of either high anomaly radon fields in view of the character of radon field over sandstone-type uranium provide an algorithm for further research.
针对砂岩型铀矿体上氡气场低值区对应矿体而高值异常场对应矿体两端的特点，以矿体端点高值异常峰值点为中心进行二维等步长剖分，得出差分方程，为问题的进一步研究提供一种算法思路。
D-glucosamine has biological activity. The progress in study and application of D-glucosamine derivatives in the field of biology and medicine was reviewed in this paper.
氨基葡萄糖具有一定的生物活性，对其进行化学修饰后可广泛应用于生物医药领域。
With 312-d optimized saturation design, field experiment was conducted to study yield effect of water and fertilizer coupling on spring maize.
采用312-D最优饱和设计，开展了春玉米水肥耦合作用田间试验研究。
Which demonstrate the accuracy of our study of acoustic field in an axial asymmetric borehole by using 2.5-D finite difference method.
由此证明我们应用有限差分法来研究非轴对称井孔声场的方法是正确可靠的。
This paper is not only for PH. D, but also for writer's improved study about this field in future.
在此过程中，作者不仅希望以论文参加答辩，也愿意为自己今后的进一步研究准备一块基石。
The energy field study should be stressed on the restoration of Palaeo fluid potential in 3 D hydrocarbon source rock masses and fluid passage systems.
在进行能量场分析时，应注重在三维烃源岩体和流体输导体系发育的格架下，恢复古流体势。
Through the study for the full 3-d flow field of LP casing under all conditions, the internal flowing mechanism of the turbine shall be known clearly to optimize the design of air cooling units.
通过分析研究低压缸全工况三维流场，可深入了解透平内部流动机理，有助于进一步优化空冷机组设计。
Through the study for the full 3-d flow field of LP casing under all conditions, the internal flowing mechanism of the turbine shall be known clearly to optimize the design of air cooling units.
通过分析研究低压缸全工况三维流场，可深入了解透平内部流动机理，有助于进一步优化空冷机组设计。
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