求翻译：一、井田概况。本矿地质构造较简单，井田走向长约6.1km，倾向长约4km，井田总面积为24km2，主采煤层为3号煤，平均倾角4°，主采煤厚平均总厚为3.77m。是什么意思？

An Ida Overview. The geological structure of the ore is relatively simple and Ida go about 6.1km, the tendency is about 4km, the the Ida total area of ​​24km2, the main coal layer on the 3rd of coal, with an average dip angle 4 °, the average total thickness of main coal seam thickness of 3.77m.

A mine field. This ore geological formations is relatively simple, mine field to about 6.1 km long and about 4 km long trend, mine field area of 24 km2 and the main unit is No. 3 coal seam, on average, 4° tilt main coal thickness overall average thickness of 3.77 m.

First, well field survey.This ore geologic structure is simple, the well field moves towards long approximately 6.1km, favors long 4km, the well field total area is approximately 24km2, advocates the mining coal level is 3 coals, the average inclination angle 4°, advocates mining coal thick always t

First, the geological survey. The geological structure is relatively simple, mine to about 6.1km, about 4km long, total area of 24km2 mine field, the main minable coal, for the 3rd, the average angle of 4 °, main coal thickness average general thickness of 3.77m.

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