olfactory substance

• 嗅觉物质

olfactory substance的用法和样例：

例句

1. Whereas attractants, repellents, and many incitants are olfactory substances, stimulants, and deterrents are usually gustatory.
   引诱剂，排斥剂还是其他的兴奋剂都是嗅觉物质，但刺激剂和阻抑剂常常是味觉物质。