steric是什么意思？

steric

例句

• Macromolecules cannot approach the ligand owing to steric hindrance of the matrix. 由于载体的立体位阻的关系,大分子化合物不能接触到配基.
• A rather more complex case is that of steric isomerism. 更复杂的情形是立体异构问题.
• Severe steric effects at the reactive carbon would impede the substitution. 大的立体效应阻止在碳上的取代.