pitch pocket

丝锁气压计_馆档网 ... "脂囊"," Pitch pocket" "树脂囊"," Pitch pocket" "树脂沟"," Pitch seams" ...

pine中文 ... pitch of the wire 网案倾斜 pitch pocket 树脂束... 木焦油; wood tar ...

建筑词汇英语翻译(O-T) ... pitch 间距;斜角 pitch pocket 松脂孔 pitch streak 松脂孔 ...