The export designation of the Su-34 is Su-32. Full-rate production began in January 2008. In the same month, the Russian Air Force stated that 70 aircraft would be secured by 2015. Under a state contract with the Russian Ministry of Defence, Sukhoi will deliver the Su-34 bombers to the Russian Air Force and army units until 2020.
I wondered this for a while now. While I know that the Russian Air Force and Russian Navy both operate Su-30s in their own distinct liveries (light blue camouflage vs black-blue duo tone), as far as I am aware the Su-35 and Su-34 are both exclusively operated by the russian air force.
“The Russians had such an advantage. And if you add more technology that you invested in Russian aircraft. That is, the modernization of the Su-27 into the Su-30, then the Su-34 appeared, the Su-35,” Ihnat noted. File Image: Su-34 Russian Fighters Have Been Very Effective 隨後，第一架改良版蘇-35也就是蘇-37出現於1996年，現有的蘇-35原型機與資料也全部轉往蘇-37專案；蘇-35專案結束，但是後來蘇-37專案又恢復成蘇-35。蘇-35現在俄羅斯空軍少量服役中（至2018年末共78架蘇-35s）。 蘇-35比起蘇-27、蘇-30、蘇-33都有更大機翼和引擎。更

The main difference is : su - username sets up the shell environment as if it were a clean login as the specified user, it access and use specified users environment variables, su username just starts a shell with current environment settings for the specified user. If username is not specified with su and su -, the root account is implied as

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difference between su 30 and su 35