1. The soldiers laboured their way with great difficulty on the marsh land.
士兵们在沿泽地上吃力地前进。
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2. Therefore the partial landform uplift among the ancient landform highland, the ancient landform slope and the marsh land will be most advantageous area belt of the growth of interlayer karst process.
因此古地貌高地、古地貌斜坡与洼地中的局部地貌隆起将是层间岩溶作用发育的最有利区带。
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3. The oil that has reached the shore may exacerbate the problem of land loss by poisoning the marsh grasses that hold the delicate coastal sands and silts together.
4. Buried tidal marsh or coastal forest soils point to sudden land subsidence of about 1 meter occurring at the same time from Vancouver Island to Northern California.
埋在地下的潮汐沼泽及沿海森林土壤使温哥华至加利福尼亚州北部一带的地面沉降1米左右。
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5. In addition, the yield of energy from unit land of marsh gas is the highest.
另外，沼气的单位土地能量产出率是最高的。
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6. Vast expanses of marsh that used to abound with reeds have been converted into arable land.
曾经是芦苇丛生的大片沼泽地已经变成了耕地。
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7. This period, the marsh reeds mainly transform into farmland, natural vegetation and salinization land.
这时期芦苇沼泽主要转换为耕地、天然植被和盐渍化土地。
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8. The area of Salinization land had increased of 24.24% from 1973 to 1990, this part of area converted mainly from natural vegetation and marsh reeds.
