For example, it is not normally possible to check the air pressure in an automobile tire without letting out some of the air, thereby changing the pressure.
Sund, wǎr eqel ayknan tadabit ən umaɣ ən assahat ən adu daɣ tebalawt ən toraft wala azzajar aɣil ən adu, awen issəmətuyan assahat.