链

• The linkages between the stable units must be as near as possible of equal stability .
  稳定链节之间的键必须有尽可能接近的稳定性。
• These peaks correspond to side-chain cleavage of the ethyl and propyl groups respectively .
  这些峰分别相当于乙基和丙基的侧链开裂。
• The chain must fold on itself to allow these cysteines to be in close proximity .
  这个链必然是弯曲折叠，而使这些半胱氨酸靠得很近。
• The nonpolar segments of surfactants include straight-chain and branched alkyl groups .
  非极性表面活性剂链段包括直链和支链的烷基。