Isibalo sesisindo sendwangu engalukiwe

Izindwangu ezingalukiwe nazo zinezindlela zazo zokulinganisa ukujiya nesisindo. Ngokuvamile, ukujiya kubalwa ngamamilimitha, kuyilapho isisindo sibalwa ngamakhilogremu noma amathani. Ake sibheke izindlela zokulinganisa ezinemininingwane zokushuba kanyeisisindo sezindwangu ezingalukiwe.

Indlela yokulinganisa yezindwangu ezingalukiwe

Noma iyiphi into inesisindo, njengendwangu engalukiwe esikhuluma ngayo namuhla. Ngakho-ke indlela yokubala isisindo sendwangu engalukiwe?

Ekubalweni kwesisindo nesisindo sezindwangu ezingalukiwe, amayunithi amane asetshenziswa ngokujwayelekile: elilodwa liyigceke, elifushanisiwe ngokuthi Y ngesiNgisi; Eyesibili ngamamitha, efushanisiwe ngokuthi m, eyesithathu igremu, ifushanisiwe ngokuthi amagremu, kanti eyesine ingamamilimitha, efushanisiwe ngokuthi mm

Isibalo sobude

Ngokwezicaciso, kokubili usayizi nemitha kusetshenziselwa ukubala ubude. Ekukhiqizeni indwangu engalukiwe, imitha ivame ukusetshenziswa njengeyunithi yobude, futhi amayunithi okulinganisa ubude ahlanganisa amamitha, amasentimitha, amamilimitha, njll. Ngenxa yokuthi izindwangu ezingezona ezilukiwe zigoqwe ngayinye ngayinye, ukuphakama komqulu kubizwa ngokuthi ububanzi, kuboniswe ngamamitha. Ukucaciswa okuvame ukusetshenziswa ngokuvamile amamitha angu-2.40, amamitha angu-1.60, namamitha angu-3.2. Isibonelo, ohlelweni lokukhiqiza indwangu engalukiwe, inqubo ngayinye yokukhiqiza izoba nobude obuthile, njengokuthi "ukukhiqiza amamitha angu-X wendwangu engalukiwe emshinini owodwa wokubumba".

Isisindo sokubala

Njengoba kunobude nobubanzi, ingabe likhona iyunithi eliwugqinsi? Kunjalo, zikhona. Ngokwamazinga omhlaba, amayunithi okulinganisa isisindo amagremu (g), amakhilogremu (kg), njll. Ekwenziweni kwendwangu engalukiwe, iyunithi yesisindo esetshenziswa kakhulu amagremu, futhi amagremu asetshenziswa ukubala ukujiya. amagremu abhekisela esisindweni segram esiyisikwele, esingu-g/m ^ 2. Kungani ungasebenzisi amamilimitha? Eqinisweni, amamilimitha asetshenziswa futhi, kodwa awavamile ukusetshenziswa. Lona umthetho wemboni. Eqinisweni, isisindo segram yesikwele singalingana namamilimitha ngogqinsi, njengoba isisindo sezindwangu ezingalukiwe sisuka ku-10g/㎡ siye ku-320g/㎡. Ngokuvamile, ubukhulu bendwangu engalukiwe ngu-0.1mm, kanti isisindo imitha yesikwele ngasinye singama-30g, ngakho-ke isisindo somqulu wamamitha angu-100 wendwangu engalukiwe ngu-0.3kg.

Ukubalwa kwendawo

Amayunithi avamile wendawo ahlanganisa ama-square metres (ama-square metres), ama-square feet, ama-square feet, njll. Enqubweni yokukhiqiza, izindlela zokubala ezikhethekile kufanele zisetshenziswe ngenxa yobukhulu obuhlukahlukene bendwangu engalukiwe. Ugqinsi oluvame ukusetshenziswa lwendwangu engalukiwe ngu-0.1mm~0.5mm, futhi ukubala kwendawo ngokuvamile kusekelwe esisindweni imitha ngayinye yesikwele (g/㎡). Isibonelo, uma isisindo semitha yesikwele esisodwa sendwangu engalukiwe singamagremu angu-50, khona-ke indwangu engalukiwe ibizwa ngokuthi indwangu engalukiwe engamagremu angu-50 (eyaziwa nangokuthi 50g/㎡ indwangu engalukiwe).

Ubulukhuni (ukuzwa)/Ukucwebezela

Njengamanje, kukhona amathuluzi nemishini embalwa kakhulu yokuhlola ubulukhuni bezindwangu ezingalukiwe emakethe, futhi ngokuvamile zihlolwa ngokusekelwe ekuzizweleni/ekucwebezeleni kwesandla.

Iimingcele eqinile yezindwangu ezingalukiwe

Izindwangu ezingalukiwe zinemingcele yokuqina yobude kanye ne-transverse. Uma zidwetshwe ngendlela engafanele, zicindezelwa, zihlanganiswe futhi zifuthwe, umehluko kumandla okuqina we-longitudinal kanye ne-transverse awubalulekile.

Ngaphansi kwamandla adonsela phansi oMhlaba, isisindo nesisindo kuyalingana, kodwa amayunithi okulinganisa ahlukile. Isisindo sento enesisindo esingu-1 kilogram uma singaphansi kwamandla angaphandle angama-9.8 Newtons sibizwa nge-kilogram yesisindo. Ngokuvamile, amayunithi esisindo avame ukusetshenziswa esikhundleni sesisindo, aphindaphindeka ngokusobala ngokusheshisa amandla adonsela phansi. E-China yasendulo, i-jin ne-liang yayisetshenziswa njengamayunithi esisindo. Amaphawundi, ama-ounces, ama-carat, njll. nawo asetshenziswa njengamayunithi esisindo.

Amayunithi esisindo asetshenziswa kakhulu afaka ama-micrograms (ug), ama-milligrams (mg), amagremu (g), amakhilogremu (kg), amathani (t), njll.

Amacala okuguqulwa kwesilinganiso

1. Ungasiguqula kanjani isisindo sendwangu sisuke ku-g/㎡ siye ku-g/imitha?

Impahla yezigxobo zokukhangisa ezingalukiwe ngu-50g/㎡. Mangaki amagremu ezinto ezingavuthiwe ezidingekayo ukuze kukhiqizwe indwangu engalukiwe engamamitha ayi-100 ubude? Njengoba kuyindwangu engalukiwe engu-50g/㎡, isisindo ngemitha yesikwele esingu-1 singamagremu angama-50. Ngalesi sibalo, isisindo sendwangu engalukiwe engamamitha ayi-100 singama-50 grams * 100 square metres=5000 grams=5 kilograms. Ngakho-ke, isisindo sendwangu engalukiwe engamamitha angu-100 ubude singamakhilogremu angu-5/100 wamamitha=50 amagremu/imitha.

2. Indlela yokuguqula amagremu endaweni?

Ububanzi bendwangu engalukiwe buyi-1.6m, ubude bomqulu ngamunye bungamamitha angu-1500, kanti isisindo somqulu ngamunye si-125kg. Indlela yokubala isisindo ngemitha yesikwele? Okokuqala, bala indawo ephelele yomqulu ngamunye wendwangu engalukiwe. Indawo eyisiyingi enobubanzi obungamamitha angu-1.6 ngu-π * r ², Phakathi kwayo, r=0.8m, π ≈ 3.14, ngakho indawo yomqulu ngamunye wendwangu engalukiwe ingu-3.14 * 0.8 ²≈ 2.01 square metres. Umqulu ngamunye unesisindo esingamakhilogremu angu-125, ngakho isisindo ngemitha-skwele singamagremu angu-125 ngemitha-skwele ÷ 2.01 square metres umqulu ≈ 62.19 amagremu per square meter.

Isiphetho

Lesi sihloko sethula indlela yokuguqula yokulinganisa umshini wendwangu engalukiwe, okuhlanganisa ukubalwa kwendawo, isisindo, ubude, nezinye izici. Enqubweni yokukhiqiza izindwangu ezingezona ezilukiwe, izinkinga zokulinganisa zivame ukuhlangana nazo. Uma nje indlela yokuguqula ehambisanayo isetshenziselwa ukubala, imiphumela enembile ingatholakala.