长期的经济抑制包括石油生产和出口的下降，人口快速增长造成的供水压力，工业膨胀和逐渐严重的水污染。
Long run economic constraints include declining oil production and exports and pressure on water supplies caused by rapid population growth, industrial expansion, and increased water pollution.
衡水市区的水污染是比较严重的，其造成的经济损失是巨大的。
The environment pollution in Hengshui urban area is more serious, the economic loss caused by it is enormous.
突发性水污染事故不仅造成巨大的经济损失，而且造成社会的不稳定和生态环境的严重破坏。
The sudden water pollution accident have not only caused economic losses, but also brought on society instability and serious destruction of ecological environment.
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