The series Jaw Crusher features of great breakingratio, uniform particle sizes, rational construction, reliable operation, easy maintenance and effective cost.
该系列颚式破碎机具有破碎比大、产品粒度均匀、结构简单、工作可靠、维修简便、运营费用经济等特点。
2
It is special important meaning that Deep - hole blasting With bottom Gap Charging is used to protect bottom rock from breaking, to decrease block ratio and to improve blasting efficiency.
深孔爆破孔底空隙装药在有效地保护底板岩层免遭破坏，减少大块率，提高爆破效率等方面均具有重要的意义。
3
With twist-against-twist composite yarn, the correlation between breaking strength, breaking elongation ratio and twist of single yarn, twist of composite yarn are analyzed.