nonstationary growth的用法和样例：
例句
- The first quarter of this year saw a steady growth in the nation's commodities market and a good start.
今年一季度，全国商品市场平稳增长，开局良好。 - By contrast, a steady growth in advanced-box shipments will appear during the forecast period, due to under-developed value-added services and unready infrastructures.
通过比较得出，目前尚不成熟的增值服务和没有准备好的基础设施，使得高级机顶盒市场出货量将会在预测期内出现平稳增长。
