这个掩体装有空调和电灯，顶部采用4英尺厚的混凝土加固，上面还覆盖着数英尺厚的土。
The shelter has air conditioning, electric lighting, and is roofed with 4 ft. of reinforced concrete surmounted by several feet of earth. Here, Nearco is shown being led out of his shelter.
通过现场足尺试验，研究了软土中水泥土群桩的承载力特性。
Systematic in situ tests were carried out to study the bearing capacity of composite foundation with cement-soil piles in soft clay.
他定购了成吨肥沃的表层土，覆盖地面达5英尺深，把这些植物长好的样品用卡车运到山上种植。
He ordered tons of fertile topsoil to cover the grounds to a depth of five feet and full-grown specimens of the plants were trucked up the mountain for planting.
你需要从一个洞里拿出多少土，才能使它二尺长，二尺宽，二尺深呀？
How much earth can you take from a hole 2 feet long, 2? Feet wide and 2 feet deep?
你能从一个二尺长，二尺宽，二尺深洞里拿出多少土？
How much earth can you take from a hole 2 feet long, 2 feet wide and 2 feet deep?
你能从一个二尺长，二尺宽，二尺深洞里拿出多少土？
How much earth can you take from a hole 2 feet long, 2 feet wide and 2 feet deep?
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