A、一擊球,立即鳴哨 B、當(dāng)球大部分進(jìn)入對(duì)方場(chǎng)區(qū)空間即鳴哨 C、球的整體由過(guò)網(wǎng)區(qū)通過(guò)球網(wǎng)垂直面或觸及對(duì)方攔網(wǎng)隊(duì)員