求翻译：塘沽站表现为明显的持续恶化，2010年能见度年均值与市区接近为11.5km；蓟县表现为先下降再保持波动性的稳定，2010年能见度维持在15.6km左右。市区、塘沽和蓟县的能见度在11-1月和6-8月能见度较低。其中相对湿度和污染是影响能见度变化的主要条件。颗粒物的质量浓度和大气能见度之间存在着复杂的非线性关系, 细粒子是影响天津地区能见度变化的主要污染物。是什么意思？

Tanggu station performance for the apparent continued deterioration of the visibility of the annual average in 2010 and the urban areas close to 11.5km; the Jixian performance first decreased and then to maintain the stability of the volatility in 2010, visibility is maintained at about 15.6km. Visi

In Tanggu station performance continues to deteriorate, the 2010 average of the values in visibility with close to urban areas to 11.5 km in Jixian county; first drops to keep the stability and volatility of 2010 visibility at about 15.6 km . Tanggu and Jixian county urban areas, the visibility in 1

The Tangku station performance for the obvious continually worsening, in 2010 the visib

Continuing deterioration of Tanggu station for clear, 2010 average annual value of visibility and the urban areas close to 11.5km; Jixian performance for the first down and then the stability of volatility, 2010 visibility remained at about 15.6km. Urban, Tanggu and Jixian visibility in low visibili