The classification function is usually of the form shown in Figure 5.4. d 1 and d 2 are parameters that are characteristic of the crusher. They are determined primarily by thesetting of the crusher. Data from operating crusher machines indicate that both d 1 and d 2 areproportional to the closed side setting.
murmur verb (COMPLAIN) âº [ I ] to complain about something that you disagree with or dislike, but not in a public way: They were murmuring about the boss's nephew getting the job.
A heart murmur is a whooshing sound between the beats that a doctor hears through a stethoscope. The whoosh is just an extra noise that the blood makes as it flows through the heart. Doctors usually discover murmurs during regular checkups or when kids see the doctor because they're sick. Just like kids, murmurs have grades. Grade 1 is the softest-sounding murmur, and Grade 6 is the loudest.