生物链的英文：
biological chain

biological是什么意思：
adj. 生物学的

biological section rapid treater
生物切片快速处理仪

terrestrial biological resources
陆地生物资源

Reproducing by biological fission.
裂殖的由生物分裂而生殖的

Constitutive and biological characterization is the nature of soil.
土壤的本质特征是具有结构性和生物性。

Biological Investigations of Terrestrial Antarctic Systems
南极陆地系统生物调查（南极陆生调查）

chain是什么意思：
n. 链，束缚，连锁
v. 用锁链拴住，束缚，囚禁

a chain of supermarkets/a supermarket chain
超级市场联号.

a chain of mountains/a mountain chain
连绵的山[山脉]

Chains of gold are stronger than chains of iron
金链锁人比铁炼更牢靠

chain, link, articulated, other than roler chain
滚链除外的铰接链

The length of the chain molecule is proportional to the kinetic chain length
链分子的长度与动力学链长成正比。