针对拟谱方法在极坐标下遇到的坐标奇异以及压力边界条件难处理等问题，提出了一种新的基于极坐标系下的拟谱方法。

A new pseudo-spectral method based on polar coordinate system was presented to resolve the difficulty in the coordinate singularity and treatment of pressure boundary conditions.

youdao

近交系小鼠ddk具有一种奇异的繁殖特性(DDK综合症)。

Inbred strain of mice DDK shows a unique property of reproduction (DDK syndrome).

youdao

拆除电浆态的奇异子炸弹和顶夸克炸弹将会减缓太阳系内部的紧张气氛； 解除地球的隔离状态并且加速地表世界的揭露进度。

The removal of plasma strangelet and toplet bombs is easing the tension inside our Solar System, opening up Quarantine Earth and speeding up Disclosure process for the surface population.

youdao