Yuav ua li cas los xyuas qhov zoo ntawm cov phab ntsa hloov qhov (socket).
Ua ntej ntawm tag nrho cov, peb yuav tsum saib seb lub phab ntsa hloov qhov (socket) vaj huam sib luag yog xoob. Yog hais tias nws yog xoob, lub ntsiab yog vim li cas lub fastening screws tsis nruj: seb lub vaj huam sib luag yog ntsug thiab tiaj tus, thiab seb puas muaj tej yam tshwm sim uas tsis nyob ze rau ntawm phab ntsa. Yog tias muaj cov xwm txheej no, cov ntsia hlau qhov hauv lub thawv sib txuas yuav tsum raug kho;
Yog hais tias qhov kev ncua deb ntawm phab ntsa hloov lub qhov (socket) vaj huam sib luag thiab lub vaj huam sib luag hloov loj dhau lawm, nws feem ntau tshwm sim los ntawm qhov kev ncua deb tsis ntsuas thaum txhim kho lub thawv sib txuas, yog li nws yuav tsum tau rov ua dua lossis hloov kho;
Yog tias muaj av thiab tawg ntawm phab ntsa hloov lub qhov (socket), nws yuav tsum tau hloov; Yog tias qhov hloov pauv tsis hloov pauv, nws feem ntau yog vim nws cov teeb meem zoo thiab teeb meem kev teeb tsa, nws yuav tsum tau muab tshem tawm thiab kho ua ntej rov txhim kho lossis hloov;
Nyob rau hauv tib chav, qhov siab ntawm phab ntsa hloov qhov (socket) vaj huam sib luag yog qhov tsis sib xws, uas yog vim qhov tsis ua haujlwm ntawm qhov siab thaum txhim kho lub thawv sib txuas.
