This paper presents researches that AF and BPP's variables have impacts on F-rubber's sulfuration and physics properties.

研究了双酚硫化体系的硫化剂双酚AF和促进剂BPP的变量对氟橡胶硫化特性和物理性能的影响。

youdao

The camera's subject tracking of moving objects in three dimensions, with full time servo AF (AF-F), ensures focus of moving objects throughout filming.

ENGADGET: Nikon reveals D5200 SLR with D7000-taunting specs: 24MP sensor, 39-point AF, wireless port (hands-on)