
gufa dwaar

gufa kaa dwaar ack maanav nirmit avarodhak haye joe aamtaur parr gufa key pravesh dwaar parr yaa usake thheek ander rakhaa jaataa haye taaki gufa key aantarik bhaag taka maanav pahunch koo baadhit yaa cumm kiya jaa sakey. gufa mein pravesh karane kaa kaaran alag-alag hoe sakata haye, lekin isamen samvedansheel yaa luptapray chamgaadad prajaatiyon kii raksha karna, najuk gufa sansadhanon kii raksha karna yaa khatarnak gufaaon taka pahunch koo seemit karna shamil hoe sakata haye.
sanyukt raajya america mein, dwaar nirmaan key liye ack "udyog maanak" vikasit kiya gayaa haye. iss maanak kaa vyaapak roop seey rashtriya udyaan seva jaisi agencies dwara upayog kiya gayaa haye.aiss. machhali aur vanyajeev, bhoomi prabandhan beuro, yuu.aiss. vann seva, prakriti sanrakshan, rashtriya vishisht samaaj aur anya. yeh maanak uchit gett placement parr kendrit haye joe havaa key pravaah mein baadha naheen daaltaa haye joe ack gufa key sookshm-paaristhitiki tantra koo badal dega.
udyog maanak yaa "buniyaadi gett design" kshaitij salakhon kaa ack urdhvaadhar roop seey rakhaa gayaa sapaat grid haye. chamgaadad jaise chhote jaanvaron kii pahunch kii anumati dene key liye baar grid kaa antar mahatvapurna haye, lekin maanav pravesh koo pratibandhit kartaa haye. anya design maujood hain, lekin baar grid kaa antar saarvbhaumik prateet hotaa haye.