单词	hour hammer
释义	hour hammer 时锤
随便看	collector box collector breakdown voltage collector brush collector bulk resistance collector capacitance collector channels collector characteristic collector cone collector contact collector control collector-coupled logic collector coupling collector cover plate collector cup collector current collector current cut-off collector current runaway collector cutoff collector cut-off collector cut off current collector cut-off current collector cutoff current collector cutoff frequency collector cylinder collector depletion layer sxrs sxrx sxry sxsj sxsm sxsn sxss sxsw sxsx sxsy 30123 30124 30125 30126 30127 30128 30129 30130 30131 30132