火花 火花的英文 英语翻译 light; scintilla; spark; sparklespark 拓展翻译 火花避雷器spark arrester火花插头spark plug火花点火器spark ignitor火花点火提早角spark ignitionadvance angle火花点燃spark ignition火花电容器spark capacitor火花电压sparkover voltage火花放电spark discharge火花光谱spark spectrum火花计时器spark timer火花加工spark working火花间隙spark gap火花间隙伏特计sphere-gap voltmeter火花检漏试验spark test火花瀑炸法spark explosion metnod火花球电极spark ball electrode火花塞spark plugsparking plug火花式发射机arc-transmitter火花室spark chamber火花调整spark adjustment