双单体附加系（double monosomic additive line）

[名词解释] 单体附加系（Monosomic additive line）

[名词解释] 二体附加系（disomic additive line）

[名词解释] 异附加系（alien addition line）

[名词解释] 异附加系

[名词解释] 易位系（translocation line）

[名词解释] 双进路 double routes

[名词解释] finite cell line (有限细胞系)

[名词解释] infinite cell line (无限细胞系)

[名词解释] 双单体

[单选题]A．n additive used to improve the ability of a lube oil to reduce friction is known as a/anA．suppressant additiveB．dispersant additiveC．extreme pressure additiveD．viscosity improver additive