1. The拼音 of a excavator is composed of three characters, which are "WA," "JUE," and "JI."2. The first character "挖" is pronounced as "WA."3. The second character "掘" is pronounced as "JUE."4. The third character "機" is pronounced as "JI."5. Therefore, the uppercase拼音 of the phrase "挖掘機" is written as "WAJUEJI."
綜合
