GJ89 type probe traps were used to monitor stored-grain insects species,distrib ution in different storage periods in the steel silo.是什么意思_GJ89 type probe traps were used to monitor stored-grain insects species,distrib ution in different storage periods in the steel silo.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句