大家在查： exogenous organic matter exoglucanase exon trapping Exopoly Saccharides Expanded graphite exoenzyme exit right exit block Existing Railway existential proposition

exogenic action

美英

exogenic action

take action ... equivalent action 等效动作[作用] exogenic action 外力[外生]作用 expansionary action 促进(经济发展的)措施 ...

When the gear rack is free from exogenic action, the upper master body and the lower master body are connected together by a spline ;