天然

• This natural system is sometimes disturbed, and irregular beats occur .
  这种天然的系统有时会发生紊乱从而出现不正常的跳动。
• Let us explore the structure proof of a natural product called "aethusin" .
  让我们研究一个天然产物“欧毒芹素”的结构证明。
• The crude reds and greens and blues of that coloured glass held us there .
  彩色玻璃天然的红色、绿色、蓝色把我们吸引在那里。
• Their main effort is directed to stratigraphy and structure of outcrops .
  他们的主要精力放在研究天然露头的地层情况与构造上。
• This area was covered by almost 50 per cent as many live plants as the nature forest .
  这个区域生长的植物已达天然森林的50。
• Healthy, skin, mucous membranes, and cilia are natural barriers to many viruses .
  健康的皮肤，粘膜和纤毛是许多病毒的天然屏障。
• The water in natural steam fields is normally contaminated by salts, acide, and lyes .
  天然蒸气田里的水通常都含有盐类，酸类和碱。
• Fine-grained clay may settle out in the sheltered bays on the outer sides of the levees .
  细粒粘土可以沉积在天然堤外侧的隐蔽湾中。
• It is a large natural laboratory in which evolution can be seen at work .
  它是个巨大的天然实验室，在那里可以看到实际的的演变过程。
• This involves an equilibrium between the native and denatured forms of the protein .
  这涉及到蛋白质的天然形式和变性形式之间的平衡。