1)fully opening,全开口2)opening all tuyere,全开风口3)removable head drum,全开口桶4)all ports open,通口全开5)open shed,全开梭口6)full opening,全开襟，[粤]全开口
用法例句
4 350 m3 BF realized full blast in 2 days and pulverized coal injecting in 3 days through means of full prepare,making blow-in plan,perfecting blow-in and production operation system,operating with opening all tuyeres.
