提高土壤有机质含量、改善贫瘠的土壤环境是各基地当前的首要措施。

The first and most important work was to improve organic matter content and amend arid soil in every vineyard.

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因此，我们接触了当地当前建立的已经被认可的传教团，它仍然主导着整个传教时期的这个国家的传教活动。

And thereby we touch upon the institutionalized mission that was now founded and which remained predominant for the mission in this country the whole mission period out.

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用灰色线性规划研究鲍店矿区水源地当前和未来不同时期不同情况下的最大开采量、至少开采量及其相应的最优运行方案。

Maximum and minimum pumpage and optimum operation of water supply area in Baodian mine area in different periods and in different conditions are studied by grey linear programming.

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And last year to did we hand students Google maps, Google news, asked them to mash those two very familiar real world products together so that they had a map of the United States, little markers sprinkled throughout, that indicated exactly where there were current events going on.

去年我们给学生提供了谷歌地图和谷歌新闻，要求他们把这两个熟悉的实时世界,产品结合到一起，这样他们就有了一个美国地图,上面到处都是一些小图标，它们能够精确地标记出,当前事件发生的地方。

哈佛公开课 - 计算机科学课程节选