pico-

combining form

1. 皮（可）；微微；万亿分之一
   10⁻¹²; one million millionth

1. Testing method for abrasion resistance of rubber vulcanized ( pico abrader)
   橡胶特性试验方法-抗磨性（皮考磨损机）
2. Methods of enumeration of pelagic and benthic pico-and nano-sized photosynthetic organisms, bacteria and viruses by flow cytometry were discussed in Chapter two.
   第二章重点阐述了应用流式细胞术测定水体及底栖微微型、微型植物、细菌与病毒的方法；
3. The ratio of the production of size fractionated phytoplankton to the total phytoplankton production corresponding to pico-, nano-and micro-algae were 13.6%, 66% and 20.4%, respectively.
   各粒级浮游植物初级生产力分别占总生产力的13.6%、66.0%和20.4%。
4. Study on Active-passive Mode-locked Nd: YAG Pico-second Laser
   主被动锁模Nd：YAG皮秒激光器研究
5. The respiration rates of zooplankton of micro-and pico-( containing bacteria) are higher than those of the corresponding sized phytoplankton, while the respiration rate of nano-phytoplankton is higher than that of nano-zooplankton.
   小型浮游动物、超微型浮游动物（含细菌）的呼吸率显著高于相应粒级浮游植物呼吸率，微型浮游植物的呼吸率明显高于微型浮游动物呼吸率。
6. Design and Realization of Digital Demodulation in Pico-satellite Communication System
   皮卫星通信系统中的数字解调模块