That leads to biquadratic equations for solution.它们又引出待解的双二次方程.The global topological structure of the biquadratic systems is discussed and their coefficient conditions are given.讨论了一类齐四次系统的全局结构,并给出了它们的系数条件.In this paper...
周四，南极气流给智利南部带来了刺骨的严寒。Antarctic air brought biting cold to southern Chile on Thursday.他是智利政坛的风云人物。He's a big shot in Chilean politics.智利和阿根廷对于南极的领土主张都持强硬态度。Both Chile and Argentina feel very strongly about their terr...
The baptismal pool was just above the choir loft.洗礼池就在唱诗班楼座上方.If you're converting your loft, these addresses will be useful.你要是打算改造阁楼，这些地址会派上用场。It is always worth having a loft conversion costed out.估算一下改建阁楼的费用总是很有...
薄层状的坚硬的石灰岩山崖正好位于靠盆地一侧.A thin, resistant limestone escarpment is present just basinward.泥质物被许多薄层灰岩所隔开.The mud is interrupted by numerous thin beds of limestone.局部出现砂质页岩薄层和碳质碎屑.Thin layers of sandy shale, and carbonaceous ...