N an open chain of atoms in a molecule with no attached side chains 直链
N (as modifier) 直链的
a straight-chain hydrocarbon
The term " normal" applies to the isomer that has all its carbon atoms linked in a straight chain.
对这类异构体采用「正构」一词是因为这类异构体的全部炭原子都以直链形式连在一起。
The longer the chain length of straight chain monoacids is, the stronger the effect on the cloud points is.
直链一元酸的加入均使浊点下降，且酸的碳链越长影响越大。
The effects of straight chain alcohols with different chain length, C8 alcohol isomers, structures of hydrophilic group and kinds of catalyst on the permeability were examined.
考察了不同碳链长度的直链醇、C8醇同分异构体、亲水基结构及催化剂种类对渗透性的影响。
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