【医】 滤柱, 滤棒

五花八门的商品是很难用同一的技术和方法来处理的,每一类商品都有其特点,要拍摄好,必须仔细研究商品的外形、质地及用途,根据广告的创意要求,确定好拍摄器材,给出最佳的布光和构图,并在拍摄过程中进行严格的技术控制,才能取得完美的效果.

pre-bypass filter

crossover network microwave filter

ceramic filter

filter chamber

filter feeder, suspension feeder

bandpass filter with fixed mid-band frequency and bandwidth

bandpass filter with fixed mid-band frequency and adjustable bandwidth

mesh filter