Ungafakela ezona mpompo zibalaseleyo emhlabeni, kodwa ngaphandle kwezitywina ezilungileyo zoomatshini, ezo mpompo aziyi kuhlala ixesha elide. Iimpawu zempompo zoomatshini zithintela ukuvuza kwamanzi, zigcina ungcoliseko ngaphandle, kwaye zinokunceda ukonga iindleko zamandla ngokudala ukukhuhlana okuncinci kwi-shaft. Apha, sityhila iimfihlo zethu ezintlanu eziphambili zokukhetha...
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