The thermal stability and lifetime of three new tailed porphyrin triethylamine and pyridine quaternary ammonium salts were studied by isothermal thermogravimetric method.
用等温热重技术研究了三种新型尾式卟啉三已胺和吡啶季铵盐的热稳定性及寿命。
Some precise estimates were made of two kinds of ruin probabilities of finite time with heavy- tailed insurance risk and financial risk.
在保险风险和金融风险为重尾分布的条件下，得到了二维风险模型两种破产概率的精确估计以及另外一个破产概率的上下界。
The Bramble Cay melomys were long-tailed, whiskered creatures who lived on an island in the Great Barrier Reef; today none exist.
珊瑚裸尾鼠（Bramble Caymelomys）是生活在大堡礁一个岛屿上的一种动物，长着胡须和长长的尾巴，如今已经不复存在。
The Bramble Cay melomys were long-tailed, whiskered creatures who lived on an island in the Great Barrier Reef; today none exist.
珊瑚裸尾鼠（Bramble Caymelomys）是生活在大堡礁一个岛屿上的一种动物，长着胡须和长长的尾巴，如今已经不复存在。
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