During the anchoring and shotcreting construction at the rock heading blast advancement face, problems such as support strength can not be guaranteed or engineering quality uneasy to control exist.

岩巷炮掘工作面的锚喷施工存在支护强度得不到保证、工程质量不易控制等问题。

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Wayne Rooney believes he will become a better player in the presence of Dimitar Berbatov - but he says the strength of United's attack means he is not guaranteed a place in the side.

维恩·鲁尼相信贝尔巴托夫的存在将帮助他成为更好的球员，不过他也称曼联强大的攻击线让自己很难保证主力位置。

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