It should be noted that {HEAD ~ the embodiments} are applicable to a piezoelectric resonator element having {TAIL ~ one resonating arm} or a piezoelectric resonator element having two or more of resonating arms 
It should be noted that { HEAD ~ the embodiments } are applicable to a piezoelectric resonator element having { TAIL ~ one resonating arm } or a piezoelectric resonator element having two or more of resonating arms
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