The etiolation symptom of the ginkgo leaf can be effective meliorated by using HAF .

5腐植酸复合肥能有效地改善银杏叶缘黄化现象。

Effect of mixing conditions on rheological behavior of HAF black filled powdered SBR

混炼条件对HAF填充型粉末SBR混炼性能的影响

Influence of mixing process for SBR / HAF on properties of vulcanizate

SBR/高耐磨炭黑的共混方式对其硫化胶性能的影响

Study on ( HAF carbon black-rare earth ) - filled powdered NR ⅰ . Mechanical properties of vulcanizates

稀土掺杂高耐磨炭黑填充型粉末NR研究I.硫化胶的物理机械性能

Portal venous flow ( PVF ) and hepatic arterial flow ( HAF ) were measured via flow probes .

测定门静脉血流量（PVF）、肝动脉血流量（HAF）。