词汇	mechanical barrier
释义	mechanical barrier 机械屏障
随便看	sodium ethoxide sodium ethoxynaphthamidopenicillanate Sodium Ethoxynaphthamidopenicillanate sodium ethyide sodium ethyl sodium ethylanthogenate sodium ethylate sodium ethyl carbonate sodium ethylcyclohexyldithiocarbamate sodium ethylenediaminetetraacetate sodium-ethylenediamine-tetra-acetic acid sodium ethylene diamine tetracetate Sodium ethylene sulfonate sodium ethylhexanoate sodium ethylmercaptide sodium ethylmercurithiosalicylat sodium ethylmercurithiosalicylate sodium ethyl mercurithiosalicylate sodium ethylmercurithiosalicylates sodium-ethyl-methyl-butyl barbiturate sodium ethylphenylbarbiturate sodium ethyl p-hydroxybenzoate sodium ethylsiliconate sodium ethylsulfate sodium ethyl sulfate