Tsim kom muaj zog tes yog ib qho txuj ci tseem ceeb rau cov menyuam yaus uas tawm tsam nrog kev siv cov khoom me me xws li cov nyees khawm lossis zippers. Ib tug me nyuam uas tawm tsam nrog kev sau ntawv tuaj yeem muaj ntau zaus uas muaj tes tsis muaj zog. … Nov yog txoj hauv kev muaj tswv yim los siv khaub ncaws los txhim kho lub cev muaj zog tes zoo.
Yuav siv cov khaub ncaws dab tsi?
Ib khaub ncaws (Asmeskas Askiv), lossis khaub ncaws peg (UK Askiv) yog a fastener siv los dai khaub ncaws kom qhuav, feem ntau ntawm cov khaub ncaws. Clothespins feem ntau tuaj hauv ntau qhov sib txawv.
Kev siv zog ntawm khaub ncaws yog dab tsi?
kawg ntawm cov khaub ncaws nrog koj cov ntiv tes (qhov kev siv zog), fulcrum nyob nruab nrab, uas ua rau nws yog chav kawm-1 qib; thaum lub caij nplooj ntoos hlav tuav cov khaub ncaws (qhov kev siv zog), kev siv zog yog nyob rau hauv nruab nrab, ua rau hauv chav kawm-3 qib; lees paub tias ib feem ntawm lub caij nplooj ntoos hlav yog lub fulcrum, thiab lwm yam caj npab ntawm lub caij nplooj ntoos hlav tuaj yeem yog …
Leej twg tsim tus thawj khaub ncaws?
thawj tus qauv tsim uas zoo li cov khaub ncaws niaj hnub no tau patented hauv xyoo 1853 los ntawm David M. Smith, tus neeg tsim khoom Vermont muaj txiaj ntsig. Smith kuj tau tsim ib qho kev sib koom ua ke, ib qho "dub kws dhos" (ib lub tshuab ua haujlwm rau shaping hlau) thiab nqa lub caij nplooj ntoos hlav rau matchboxes.
Ua khaub ncaws hnav xeb?
Cov no tsis yog 100% xeb-pov thawj, tab sis ua xeb tsawg dua li cov ntoo nrog lub caij nplooj ntoo hlav. Lawv kuj muaj tuav ntau dua thiab nrog lub qhov loj dua, ua tau zoo ntawm cov ntawv jib.
