演化

• The core again contracts, and the star's evolution proceeds inexorably to the final state .
  恒星核心必将再度收缩，恒星不可抗拒地要演化到最后的状态。
• There is a potential time bomb ticking away on the shelves of the stellar evolutionists .
  在星球演化论者的理论仓库中埋藏着一枚正在滴答作响的定时炸弹。
• It reminded him that unforeseen factors operate in the evolution of immortality .
  这种情形，叫他想到，事物不朽不灭的演化，是有不能预知的因素操纵着的。
• An understanding of the stellar energy sources is still more vital for the problem of stellar evolution .
  弄清恒星的能源对恒星演化的研究是更为关键的问题。
• Models of how volcanoes work and evolve have become important tools in mineral exploration .
  关于火山是怎样活动和演化的模型，已成为矿物勘探的一个重要工具。
• Molecular clouds play an integral role in the prestellar evolutionary sequence of interstellar matter .
  分子云在星际物质的星前期演化序列中起着不可缺少的作用。
• Even if the genes themselves are not initially hazardous, you do not know how they are going to evolve .
  即使基因本身起初是没有危险的，但你不知道它们将如何演化。
• All the pomoideae were allopolyploids derived from a doubled hybrid between two remote ancestral types .
  所有的梨亚科是由两个远缘祖先类型双杂交演化的异源多倍体。
• Only in the tropics were numerous late cretaceous groups extinguished during peaks in their evolution .
  只是热带地区才有大批晚白垩纪生物类群正值其演化的极盛时期突然消亡。
• By 2000 b.c, babylonian arithmetic had evolved into a well-developed rhetorical, or prose, algebra .
  大约在公元前2000年，巴比伦算术已经演化成为一种高度发展的用文字叙述的代数学。