沙丘

By optimizing the culture conditions, the present work developed for the first time an efficient system for inducing embryogenic callus formation and plant regeneration through somatic embryogenesis from both dune reed, an ecotype with drought tolerance growing in desert region of northwestern China and local swamp reed .

本研究通过优化培养条件首次建立了沙丘芦苇（一种生活在中国西北沙漠地区的具抗旱性能的芦苇生态型）和当地的沼泽芦苇的体外培养体系。

Their fictional world has been replaced by a fantastic real one of trackless dunes and icy crags.

他们那虚构的世界，已为荒芜的沙丘和酷寒的皑崖这一奇异的真实境界所替代。

Able to track game for days across the red Kalahari dunes, the San tribesman plans to resume a traditional way of life.

桑族人打算恢复传统的狩猎生活：翻越一座座卡拉哈里赤红的沙丘，几天几夜的追踪猎物。

The Tuareg, turbaned nomads who for centuries have ruled this barren realm, refer to it as a "desert within a desert"—a California-size ocean of sand and rock, where a single massive dune might stretch a hundred miles, and the combination of 120-degree heat and inexorable winds can wick the water from a human body in less than a day.

带头巾图瓦雷克民族几个世纪来统治着这片贫瘠的土地，他们把这里叫作"沙漠中的沙漠"。这是一片和加利福尼亚一样大小的沙石之海，单是一座孤立的巨大沙丘就可以绵延几百英里，华氏120度的高温加上无情的暴风可以在一天之内将人体内的水分像燃烧灯芯般耗尽。

They can also head to the northern coast with its uncrowned beaches and snow-white sand dunes.

他们也可以去北边的海岸，那里有并不拥挤的海滩和雪白的沙丘。

One Bridge.Bulldozers leveled several undulated sand dunes to erect a dozen mobile houses.

推土机把几个起伏不平的沙丘推平，在那里竖立了十几栋活动房。

Patterns in Nature: Landscapes Sand dunes loom at Sossus Vlei in Namibia's Namib Desert.

沙丘逼近在sossus vlei在纳米比亚的纳米布沙漠。

Sand dunes loom at Sossus Vlei in Namibia's Namib Desert.

沙丘逼近在sossus vlei在纳米比亚的纳米布沙漠。

Sand dunes loom at Sossus Vlei in Namibias Namib Desert.

意译：由于风吹而成的沙丘在沙漠逼近地区。

In the Pacific theater of World War II, US Marines hit the beach and charge over a dune on Iwo Jima in the Volcano Islands during the start of one of the deadliest battles of the war against Japan.

1945年2月19日：在第二次世界大战太平洋战区，美国海军陆战队袭击了一场关于硫磺岛的火山群岛沙丘期间的抗日战争最致命的战役之一启动海滩和收费。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。