防腐效率 meaning in English

preservative efficiency

Wood preservatives - laboratory method for determining the protective effectiveness of a preservative treatment against blue stain in service - brushing procedure
木材防腐剂.第1部分:使用中防蓝变防腐处理的防腐效率的实验室测定法.涂刷程序
Wood preservatives - laboratory method for determining the protective effectiveness of a preservative treatment against blue stain in service - application by methods other than brushing
木材防腐剂.使用中防蓝变防腐处理的防腐效率的实验室测定法.第2部分:不同于涂刷法的应用