单词	vacuum tube test set
释义	vacuum tube test set 电子管测试器
随便看	seepage pressure monitoring seepage prevention seepage prevention and drainage seepage prevention and scour resistance seepage prevention body seepage prevention curtain Seepage Prevention Design seepage prevention effect seepage prevention from dike foundation seepage prevention of channels seepage prevention of cofferdam seepage prevention of dam foundation seepage prevention of sluice foundation seepage prevention structure seep into the aqueous seep-irrigation seepage-prevention structure seepage prevention system seepage prevention technology seepage prevention treatment seepage preventive seepage problem seepage proof seepage-proof seepage proof curtain