stroboscope

n instrumentthat produces a rapidly flashing bright light 频闪观测仪.

stringency, stringent, stringently, stringer, stringiness, stringy, strip, strip cartoon, strip club (US also `strip joint), strip lighting, `strip light, strip-tease, stripe, striped, stripling, stripped, stripper, stripy, strive, strive for, strobe light (also strobe), stroboscopic, strode, stroke, stroll, stroller, strolling, strong, strong language, strong-arm, strong-box, strong-minded, strong-room, stronghold, strongly, strontium, strontium 90, strop, stroppy, strove, struck,