driftless

简明释义

英[ˈdrɪftlɪs]美[ˈdrɪftləs]

adj. 无定向的，无目标的

英英释义

单词用法

同义词

反义词

例句

1.This paper deals with the dynamic feedback linearization problem of mechanical driftless systems.

研究非完整无漂移力学系统的动态反馈线性化问题。

2.A formulation of the stabilizing control law is obtained for control-affine driftless systems by means of approximating the value function of the performance index by a CLF.

采用CLF近似性能指标的值函数，获得了控制仿射无漂系统的镇定控制律表达式。

3.The control of system can be converted to the motion planning problem for a driftless system.

系统的控制问题可转化为无漂移系统的非完整运动规划问题。

4.A formulation of the stabilizing control law is obtained for control-affine driftless systems by means of approximating the value function of the performance index by a CLF.

采用CLF近似性能指标的值函数，获得了控制仿射无漂系统的镇定控制律表达式。

5.The driftless region offers a glimpse into the ecological history of the area.

这个无漂移的地区提供了对该地区生态历史的洞察。

6.Farmers in the driftless region benefit from the natural fertility of the land.

在无漂移的地区，农民受益于土地的自然肥沃。

7.Hiking through the driftless valleys reveals stunning views and diverse wildlife.

在无漂移的山谷中徒步旅行可以看到令人惊叹的景色和多样的野生动物。

8.The region is known for its unique landscape, which is often described as driftless.

这个地区因其独特的景观而闻名，常被描述为无漂移的。

9.In a driftless area, the soil remains rich and undisturbed by glacial movements.

在一个无漂移的地区，土壤保持丰富且未受到冰川运动的干扰。

作文

In the vast tapestry of nature, there exist regions that seem untouched by the relentless forces of change. One such area is known as the driftless region, a term that refers to landscapes that have not been shaped by glacial drift. This unique geographical phenomenon can be found primarily in parts of Wisconsin, Minnesota, Iowa, and Illinois in the United States. The driftless area is characterized by its rugged terrain, deep river valleys, and steep hills, which starkly contrast with the flat, fertile plains that surround it. The absence of glacial drift in these regions has resulted in a rich biodiversity that is both fascinating and vital. Without the heavy layers of glacial deposits, the soil in the driftless areas is often shallower but more diverse in terms of plant life. This has allowed for the flourishing of various ecosystems, from hardwood forests to prairies, each supporting a multitude of wildlife species. The unique topography of the driftless region also contributes to its ecological significance, providing habitats for many plants and animals that are not found elsewhere.Culturally, the driftless region holds a special place in the hearts of those who live there. The towns and communities that dot this landscape are steeped in history and tradition. Many of these areas were settled by immigrants who were drawn to the beauty of the land and the promise of a new life. Today, the driftless region is celebrated for its scenic beauty, attracting tourists who come to hike, fish, and explore its natural wonders. Festivals and events throughout the year highlight local culture, arts, and crafts, fostering a strong sense of community among residents.However, the driftless region faces challenges as modern development encroaches upon its natural beauty. Urbanization, agriculture, and climate change threaten the delicate balance of ecosystems that have thrived for centuries. Conservation efforts are crucial to preserving the unique characteristics of the driftless area. Local organizations and communities are working diligently to protect their environment through sustainable practices, education, and advocacy.In conclusion, the driftless region represents a remarkable intersection of nature, culture, and history. Its unique landscapes, rich biodiversity, and vibrant communities offer a glimpse into a world that remains largely unchanged by time. As we navigate the complexities of the modern world, it is essential to recognize the importance of preserving such areas. The driftless region serves as a reminder of the beauty of our planet and the responsibility we hold to protect it for future generations.

在自然的广阔画卷中，存在着一些区域似乎未受到无情变化力量的影响。其中一个地方被称为driftless地区，这个术语指的是未被冰川漂移塑造的景观。这一独特的地理现象主要可以在美国的威斯康星州、明尼苏达州、爱荷华州和伊利诺伊州的部分地区找到。driftless地区的特点是崎岖的地形、深邃的河谷和陡峭的山丘，与周围平坦的肥沃平原形成鲜明对比。这些地区缺乏冰川漂移的影响，导致了丰富的生物多样性，这既迷人又至关重要。由于没有厚重的冰川沉积层，driftless地区的土壤通常较浅，但植物种类更加多样化。这使得各种生态系统蓬勃发展，从硬木森林到草原，各自支持着许多在其他地方找不到的动植物。driftless地区独特的地形也增加了其生态意义，为许多植物和动物提供栖息地。在文化上，driftless地区在当地居民的心中占据着特殊的位置。点缀在这片土地上的城镇和社区充满了历史和传统。这些地区中的许多地方是由被土地美丽和新生活承诺吸引的移民所定居的。如今，driftless地区因其风景如画的美丽而受到赞誉，吸引着游客前来徒步旅行、钓鱼和探索其自然奇观。全年举办的节日和活动突出当地的文化、艺术和手工艺，促进了居民之间强烈的社区感。然而，随着现代开发侵蚀其自然美丽，driftless地区面临挑战。城市化、农业和气候变化威胁着数百年来蓬勃发展的生态系统的微妙平衡。保护工作对于维护driftless地区独特的特征至关重要。当地主组织和社区正在努力通过可持续实践、教育和倡导来保护他们的环境。总之，driftless地区代表了自然、文化和历史的显著交汇点。其独特的景观、丰富的生物多样性和充满活力的社区为我们提供了一窥未被时间改变的世界的机会。当我们在现代世界的复杂性中航行时，认识到保护此类地区的重要性至关重要。driftless地区提醒我们星球的美丽以及我们保护它的责任，以便为后代保留。