素

• You should think twice about employing someone you have never met .
  你要雇用素未谋面的人应三思而行。
• Kinetin was later shown to be inhibitory for embryoid formation .
  激动素原来被表明抑制胚状体的形成。
• They have shown that there is only one anthocyanin in pseudotsuga .
  他们还证明了黄杉只有一种花色素苷。
• The sum of any two elements has an even number of prime factors .
  其中任何两个元素之和有偶数个素因子。
• Titanium in the pure state can exist in either of two allotropic forms .
  纯钛以两种同素异形的形式存在。
• The central notion in commutative algebra is that of a prime ideal .
  交换代数中最核心的概念就是素理想。
• Bacterial transposons carry genes encoding antibiotic resistance .
  细菌转座子可以携带对抗生素的抗性基因。
• Vitamins are protectives against certain deficiency disease .
  各种维生素都是保护物，能对抗某些养素缺乏症。
• Urea is commonly used as the source of nitrogen in foliage sprays .
  尿素作为氮素给源普遍地应用于叶面喷布。
• Florigen, or the flowering hormone, has been sought by many researchers .
  许多研究者都在寻找成花素或开花激素。