The application of the geology mining condition and the gob-side entry support technology in haulage roadway No. 451 face are introduced.

介绍了45 1工作面运输平巷的地质采矿条件及沿空留巷支护技术在该巷的应用情况。

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According to the cracking trouble of MDY-150 chainless haulage winning machine travel wheel's supporting base in working progress of working face, puts forward hanlding method.

针对采煤工作面生产过程中出现的采煤机行走轮支撑座开焊故障 ，对在无法直接焊接又难以拆装的情况下采取的简易方法进行了叙述。

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Continental haulage firms face higher social and employment costs and road tolls on many of their domestic routes.

ECONOMIST: Vehicle taxes

Instead it was largely a tactical retreat in the face of a barrage of criticism from motoring and road-haulage organisations.

ECONOMIST: Fuel tax