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And about 280 aquifers also cross borders .

而且约有280个地下蓄水层横跨国界。

The pipeline route crosses rich farmland and important aquifers .

输油管线沿途经过富饶农田和重要的蓄水层。

Paddy fields and aquifers are still contaminated with salt water .

稻田和地下蓄水层都遭到了盐水污染。

Arguably china 's biggest problem , though , are over pumped aquifers .

然而，中国最大的问题在于对蓄水层的过度抽排。

Such scientific work is crucial because aquifers are still poorly understood .

因为人们对含水层的了解还很少，这种类型的科学著作非常重要。