SADI Muslihuddin Abumuhammad Abdulloh ibni Mushrifuddin (1203/8, Sheroz—1292, hamon jo), shoir, nasrnavis va mutafakkiri fors-tojik. …
Mufassal »MIKROMETR
MIKROMETR (az mikro… va metr) asbobi andozagirest, ki mekhanizmi tabdildihandai on vintu gayka meboshand. Mikrometrro faqat baroi bo u suli mutlaqi koptakti chen kardani andozahoi khatti istifoda mebarand. Kori Mikrometr ba joyivazkunii vint qad- qadi mehvar (hangomi dar gaykai nojunbon charkh zanondani on) asos yoftaast. Joyivazkuni ba kunji gardishi vint …
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