quartzous含石英的quartzn.石英quartz pressure gauge石英压力传感器quartz crystal cutter石英晶体切割机quartz neutral filter中性石英滤色片quartz clock movement石英钟机芯quartz-halogen lamp石英卤气灯quartz membrane gauge石英膜真空计quartz wedge analyser石英楔片检偏器quartz crystal filter晶体滤波器quartz watch with LED发光二极管显示石英手表quartz spring balance石英弹簧秤