年中

For example, production costs for PV cells have come down steadily over the last decade to between 50 cents to 30 cents per kilowatt-hour, and lower for some applications.

举例来说，在过去十年中，光伏电池的生产成本一直呈下滑趋势，由每千瓦小时的50美分降到30美分，而且对于一些用途，成本更低。

The positive rate of Klebsiella pneumoniae is descended in four years.

结果 总共培养阳性标本809例，肺炎克雷伯菌207例，近4年中感染率有下降趋势。

The new line will be designed to complement in-office procedures, a product strategy that has surged in popularity over the last year, according to Kline's research.

新生产线将被设计为补充的办公程序，产品战略，大幅增加人气在过去一年中，根据克莱恩的研究。

Namely, the first, the beginning, end and length of growing season of every type of vegetation is estimated with threshold method and moving average method, and the beginning end and length of growing season of vegetation from 1982 to 1999 is fitted linearly, finally, linear trend of the beginning end and length of growing season of vegetation is analyzed. The second, phenological phase in different years and zones is estimated based on greatest changes of slope method and EOF analysis method, and the result monitored by the two methods is compared, as a result, trend of growing season change from 1982 to 1999 in different latitude zones is better acquired. The third, phenological phase of vegetation in different spatial location from 1982 to 1999 is fitted based on curve. Then, spatial difference rules of growing season of every year and average of multi-year is discussed in article. In the end, lag correlation and linear regress are used to study relation between phenological phase of different types of vegetation, different latitude zones, different spatial places and climate changes.

利用阈值法和滑动平均法逐年估测了每种植被类型的生长季的开始、结束日期及长度；对18年中植被生长季的开始、结束时间和长度进行一次线性拟合，分析了植被生长季的开始、结束日期和长度的线性变化趋势；基于最大变化斜率法和EOF分析法估计了不同年份、不同区域内植被生长季的开始、结束时间及其长度，并对这两种方法的监测结果作了比较，从而得到了较好的不同纬度区域1982～1999年植被生长季的变化趋势；基于曲线拟合了1982～1999年的不同空间位置的植被物候期，然后讨论了每年和多年平均的植被生长季的空间分异规律；最后利用时滞相关分析和线性回归研究了不同类型植被的物候期与气候变化的相互关系，不同纬度带的植被物候期与气候变化的相互关系，植被物候期与气候变化空间相互关系。

But on measures other than GDP, America has been the economic laggard over the past year.

但是考察 GDP 以外的指标发现，在过去的几年中，美国经济则要落后于欧元区和日本。

For the past 30 years, climate in the Lake Basin has been tendency to warming and drying.

过去三十年，青海湖流域气候存在暖干化趋势，其明显特征是，三十年中降水偏少年占了六成，而平均气温上升了约0.3℃。

Plantings of viognier in France have expanded in recent years from the Rhne (1830 acres), to the Languedoc 3440 ac.

在法国， viognier 的种植面积在最近几年中一直在增长。

Plantings of viognier in France have expanded in recent years from the Rh ne (1830 acres), to the Languedoc 3440 ac.

在法国， viognier 的种植面积在最近几年中一直在增长。

China in the past 20 years, there are many large-scale project.

中国在这20年中有很多大型的工程。

By contrast, rentals over the past year have fallen 3.9%, according to Jones Lang LaSalle.

仲量联行的数据显示，租金在过去一年中下跌了3.9%。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。