Nigute ushobora kuvuga inzira yo kunyura mumashyamba?

Nka a Abatanga amahema hejuru, Ndashaka gusangira nawe uburyo bwo kumenya icyerekezo mwishyamba.

1. Koresha ibintu bisanzwe kugirango umenye icyerekezo

Mugihe habuze amakarita ya topografiya hamwe na compas hamwe nibindi bikoresho, wige gukoresha bimwe mubiranga ibidukikije kugirango umenye icyerekezo.

Mbere ya byose, izuba n '“urushinge rwo mu majyaruguru” rwizewe.

Turabizi ko izuba ryimuka riva iburasirazuba rijya iburengerazuba, mugihe igicucu kiva iburengerazuba ugana iburasirazuba.Kurugero, saa kumi n'ebyiri za mugitondo, izuba riva riva iburasirazuba, kandi igicucu cyibintu byose kigwa iburengerazuba;saa 12h00, izuba riherereye kubera amajyepfo naho igicucu cyerekeza mumajyaruguru;saa kumi n'ebyiri z'umugoroba, izuba riterwa n'iburengerazuba kandi igicucu cyerekeza iburasirazuba.Kubwibyo, icyerekezo gishobora kugenwa hafi nigicucu cyizuba nibintu.Nkuko baca umugani ngo: "Ibisubizo ako kanya", koresha inkingi (pole igororotse) kugirango ube perpendicular kubutaka, hanyuma ushire ibuye kuri vertex A yigitutu cya pole;nk'iminota 10, shyira ikindi gice mugihe vertex yigicucu cya pole yimukiye kuri B Ibuye rihuza ingingo ebyiri A na B mumurongo ugororotse.Icyerekezo cyuyu murongo ugororotse nicyerekezo cyiburengerazuba.Icyerekezo perpendicular kumurongo AB ni icyerekezo cyamajyaruguru-amajyepfo.Impera ireba izuba ni amajyepfo, naho icyerekezo gitandukanye ni amajyaruguru.

Menya icyerekezo ukurikije ubu buryo.Iyo hejuru ya plunger, yoroheje, niko igenda ihindagurika ku butaka, kandi igihe igicucu kigenda, niko icyerekezo cyapimwe neza.Cyane cyane nka saa sita.Kurugero, igicucu gifite uburebure 11h30 na 12h30 ni kimwe.Umurongo wa vertike werekeza gusa iburasirazuba-uburengerazuba, naho umurongo uhagaritse wumurongo urashobora kandi kwerekana icyerekezo cyamajyaruguru-amajyepfo neza.

Isi izunguruka dogere 360 ​​mu masaha 24 na dogere 15 mu isaha imwe.Ukuboko kw'isaha buri gihe guhinduka inshuro ebyiri izuba.Ukurikije iri hame, umwanya urashobora gupimwa hafi nisaha nizuba.Saa kumi n'ebyiri za mugitondo, izuba riri muburasirazuba kandi igicucu cyerekeza iburengerazuba.Muri iki gihe, erekana isaha ukuboko ku isaha ku zuba, kandi “12 ″ kuri terefone izerekeza iburengerazuba.Niba terefone ihinduwe dogere 90, bizaba igice cya saa kumi n'ebyiri, gukora “3 ″ kumurongo.“” Ireba izuba, “12 ″ yerekeza mu majyaruguru;saa sita z'amanywa, izuba riri mu majyepfo, naho 12 irikubye kabiri ku buryo “6 ″ kuri terefone ireba izuba, naho“ 12 ″ iracyerekeza mu majyaruguru.

Hitamo icyerekezo ukurikije ubu buryo, urebye itandukaniro ryigihe cyaho.Igihe cya Beijing kigomba guhinduka mugihe cyaho.Ukurikije umurongo wa dogere 120 yuburebure bwiburasirazuba, ongeramo isaha imwe mugihe cya Beijing kuri buri dogere 15 muburasirazuba bwuburebure, hanyuma ukuremo isaha imwe uhereye igihe cya Beijing kuri dogere 15 zuburengerazuba, nicyo gihe cyaho.Kurugero, imirongo ya geografiya ya Urumqi ni dogere 87 iminota 40 yuburebure bwiburasirazuba, hanyuma (120 ° -87 °) ÷ 15 ° = amasaha 2 niminota 9, naho umwanya wa Beijing ukuyemo amasaha 2 niminota 9 nigihe cyaho muri Urumqi .

Ubu buryo bubiri bwavuzwe haruguru ntibushobora gukoreshwa mu cyi muri Chiayi, Tayiwani, Ikirwa cya Nanao mu majyaruguru y’amajyaruguru ya Shantou, Guangdong, Wuzhou muri Guangxi, na Gejiu muri Yunnan, mu majyepfo ya Tropic ya Kanseri (dogere 23 kuri 27 iminota 27 y’amajyaruguru).

Isosiyete yacu nayo ifiteIhema ryo hejurukugurisha, ikaze kutwandikira.