Mene ne layi? A ra'ayi na wani tsawon, wani misali na ji

Zai ze cewa irin wannan layin? A sauki ga kayan aiki ji na tsawon. Kuma abin da daraja yana a rayuwarmu! Ba tare da shi da wuya a yi wani dalibi, m, draftsman.

A kadan tarihi

A da ya saba da tsari, kamar yadda muka yi amfani da ganin ta, sai ta ke da aka sani tun da Great Faransa juyin juya halin. Wannan shi ne fiye da shekara ɗari biyu da suka wuce. Amma da ya faru za a iya kwanan rana ko da a baya lokacin. A lokacin rami na tsohon birnin na Pompeii, archaeologists sun samu kama da kewayon halayen - hade m allon.

Kuma tsakiyar zamanai ya shaida ga wanzuwar wannan ban mamaki kayan aiki, wanda abubuwa a matsayin wani bakin ciki farantin gubar. A zamanin d Rus karfe sanduna amfani for ji.

Hakika, za mu iya yin hukunci a yanzu da cewa yin amfani da su sosai m, amma cewa shi ne labarin da fitowan da kuma ci gaban da line.

Kayyade masana'antu kayan

Mene ne layi? A na'urar da cewa ya mayar da wani mike layin a kan wani jirgin saman don dalili na sarari ji. A ranar da na waje iyakar alama raka'a, wanda bauta a matsayin millimeter da santimita, kuma a cikin harshen Turanci m - inch.

Yana za a iya sanya daga daban-daban kayan: robobi (rarrabe m da opaque, m kuma m), paperboard, karfe da kuma ko da nama.

A don ƙayyade wani more m mikakke girma shi ne mafi alhẽri a yi amfani da wani karfe m. Saboda roba aka kona a wata 'yar alamar canji a cikin adadin, kuma a ƙarƙashin rinjayar danshi itace o ƙarin kumbura. Roba m m ne mafi dace don amfani, tun da shi ba ya rufe wani image. Amma shi ne mafi itace tabo juna cewa bukatar m tsarkakewa daga gurbacewa.

Metal m aka yi da takardar karfe tare da wani goge surface, kuma yana da Chrome gama wanda yake resistant zuwa lalata.

A tsawon layin

Da zarar mun siffa cewa wannan layi na ji, yana yiwuwa ya yi magana game da tsawon.

A cewar Gost, a bãyan tẽkun ne amfani na musamman sikelin. Yana iya zama daga 150 zuwa 3000 mm. More bukatar line, da tsawon wanda yake shi ne 300, 500 da kuma 1000 mm.

Outwardly m line, da surface nisa na 18 zuwa 40 mm dangane da tsawon. Su kauri ne a rabin ko daya millimeter. All žunshi equidistant daga juna, da rarraba shanyewar jiki zuwa wani darajar 1 mm.

Zero mashaya ne reference batu a aunawa kida. Shi ne yawanci a bar karshen layi kuma an dauki wani gwargwado na m.

A cikin tsarin awo m za a iya sanya ba daya, amma biyu ma'auni. Akwai irin wannan ma'auni kida ga abin da sifili division yana da dama da hagu.

Saboda haka, ya kammala karatunsa m - shi ne mafi sauki kashi na jawo alama da sikelin a kan shi, ta hanyar abin da za ka iya gina lissafi siffofi, yi mikakke ma'aunai da kuma lissafin.

A tsarin da matakan amfani a cikin tsarin awo kewayon

Meter ne mafi girma a naúrar na ji, da kuma rawar da muhimman hakkokin awo tsarin raka'a ne santimita. Daya mita yana da mutum ɗari da santimita.

Manyan fission a karkashin abin da aka shirya dabi'u lambobi nuna a fakaice santimita (cm). Matsayin mai mulkin, da misali tsawon na line shi ne talatin da santimita. A manyan nesa tsakanin alamomi ne daidai santimita.

Kananan dashes layi a saman mikawa tsakanin manyan deletions, wakiltar millimeters. Daya santimita yana da goma millimeters (mm).

Bari mu bincika a matsayin misali da aiki "awo line tsawon wata ballpoint alkalami." Yadda za a yi da shi?

A rike kamata a sanya a kan wani m surface, kuma ma'aunai za a iya sanya tare da m.

Wajibi ne don haɗa da layin zuwa hagu gefe na rike, za ka bukatar ka bi don ta kawo karshen matakin da sifili mark. Wannan dole ne a gyarawa da hagu da kuma dama don daidaita matsayin karshen ƙaddarãwar na'urar.

Extreme lambobin kusanci ƙarshen auna abu, kuma zai kasance ta tsawon. Bari mu ce shi ne 15 santimita, da kuma sauran kananan division, wadannan iyaka na karshen alama ta lambobi, wanda suke hudu, zai nufi millimeters. Saboda haka, rike tsawon 18.4 mm.

Ji abu tsawo - a Hanyar da aka za'ayi da ake ji da abu line. Ya, bi da bi, za a auna ta hanyar kwatanta ta tsawon don auna darajar. Domin kau da matakan da mutum a dinka tufafin, ka fi yin amfani da mita, wani na roba band. To, idan kana so ka auna dogon nesa, shi ne mafi dace don amfani mai tef gwargwado. Kuma a karshe, abin da yake cikin kewayon awo? A na'ura don auna inda karatu ana karanta daga hagu zuwa dama. Yawan samu a dama, zai ƙayyade tsawon. Alamu suna rubuta a matsayin gidan goma sulusi da murabba'i, msl, 0.5 cm.