vaccum pump वाक्य
"vaccum pump" हिंदी में vaccum pump in a sentenceउदाहरण वाक्य
- here we r using oil filter of superstack from achenbach gmbh . in this filter, we have to create vaccum in filter stack completely . other wise their may be fire . . . so my question is is how this vaccum pump create vaccum . and some times it is not working properly . ..