semidiurnal

简明释义

英[ˌsemɪdaɪˈɜːnəl]美[ˌsemaɪdaɪˈɜːrnəl]

adj. 一天两次的；每12小时一次的

英英释义

单词用法

同义词

反义词

例句

1.Those semidiurnal tidal waves which affect the Taiwan channel come respectively from the south and the north entrance of the channel, and the north one is stronger than the south's.

影响台湾海峡的半日潮波分别由海峡南北口传入的两支潮波，且北支强于南支。

2.The diurnal springs correspond to the semidiurnal neaps and vice versa.

全日潮大潮对应于半日潮小潮，反之亦然。

3.Chinese Proverb"the third day of water, the eighteen of tide"in the Folk World, it is only suitable of which is mainly semidiurnal tide sea, and it is not suitable of which is mainly diurnal tide sea.

民间“初三水，十八潮”的谚语，只适用于半日潮为主的海域，对于全日潮为主的海域不适用。

4.In the marginal seas adjacent to Yantai, tides are regular semidiurnal tides; and tidal currents are diurnal currents.

在烟台外海，潮汐属于正规半日潮性质，而潮流属于日潮流性质。

5.Chinese Proverb"the third day of water, the eighteen of tide"in the Folk World, it is only suitable of which is mainly semidiurnal tide sea, and it is not suitable of which is mainly diurnal tide sea.

民间“初三水，十八潮”的谚语，只适用于半日潮为主的海域，对于全日潮为主的海域不适用。

6.This procedure applies only to regular semidiurnal tidal waters forecasts and cannot accurately predict full-tide waters (such as the North Bay) and irregular diurnal tidal waters.

本程序只适用于正规半日潮海域的潮汐预测，无法准确预测全日潮海域（如北部湾）及不规则全日潮海域的潮汐。

7.The tide admittance analysis for the semidiurnal wave of the earth tide by use of the vector pattern of ground tilt observed at seismostations is expounded.

阐述如何利用地震台观测得到的地倾斜矢量图对固体潮半日波进行潮汐导纳分析。

8.Understanding semidiurnal 半日潮 patterns can help in coastal navigation.

理解semidiurnal 半日潮模式有助于沿海航行。

9.The Atlantic coast experiences a semidiurnal 半日潮 cycle, leading to predictable tidal movements.

大西洋沿岸经历semidiurnal 半日潮周期，从而导致潮汐运动可预测。

10.In regions with a semidiurnal 半日潮 pattern, fishermen often plan their trips around the tides.

在具有semidiurnal 半日潮模式的地区，渔民通常会根据潮汐安排他们的出海时间。

11.The tide is classified as semidiurnal 半日潮 when it rises and falls twice each day.

当潮水每天涨落两次时，它被归类为semidiurnal 半日潮。

12.Some marine species are adapted to semidiurnal 半日潮 environments, influencing their breeding cycles.

一些海洋物种适应了semidiurnal 半日潮环境，这影响了它们的繁殖周期。

作文

The concept of tides is fascinating and crucial for understanding marine environments. One of the most important terms associated with tides is semidiurnal, which refers to a tidal pattern characterized by two high tides and two low tides each lunar day. This phenomenon occurs in many coastal regions around the world, influencing not only marine life but also human activities such as fishing, shipping, and coastal management. In this essay, I will explore the significance of semidiurnal tides, their causes, and their impact on various ecosystems.Tides are primarily caused by the gravitational pull of the moon and the sun on the Earth’s oceans. As the Earth rotates, different areas of the planet experience varying gravitational forces, leading to the rise and fall of sea levels. In places where the tidal pattern is semidiurnal, the ocean experiences high tides approximately every six hours. This regularity creates a predictable environment for marine organisms that have adapted to these cycles.One of the key benefits of semidiurnal tides is their role in nutrient distribution within coastal ecosystems. During high tide, water inundates intertidal zones, allowing nutrients from the ocean to flow into estuaries and coastal habitats. This influx supports a diverse range of species, including fish, crabs, and mollusks, which rely on these nutrients for survival. Conversely, during low tide, many organisms are exposed to air, and some may even burrow into the sand or mud to avoid desiccation. The dynamic nature of semidiurnal tides ensures that these ecosystems remain vibrant and productive.Moreover, semidiurnal tides have significant implications for human activities. For instance, fishermen often time their trips to coincide with high tides, as this increases their chances of catching fish that move into shallower waters during these periods. Additionally, shipping industries must consider tidal patterns when planning the arrival and departure of vessels, particularly in ports where shallow waters can hinder navigation during low tides.Coastal management practices also take semidiurnal tides into account. For example, the construction of seawalls, jetties, and other infrastructure must be designed to withstand the forces of changing tides. Failure to consider these patterns can lead to erosion and damage to coastal communities. Furthermore, understanding semidiurnal tidal patterns can help in predicting the impacts of climate change, as rising sea levels may alter traditional tidal cycles and disrupt established ecosystems.In conclusion, the semidiurnal tidal pattern is a vital aspect of our planet's marine systems. Its influence extends beyond the natural world, affecting human activities and coastal management strategies. By appreciating the significance of semidiurnal tides, we can better protect and sustain the delicate balance of our coastal ecosystems while ensuring that human interests are also considered. As we continue to study and understand these patterns, it becomes increasingly clear that the relationship between tides and life on Earth is intricate and essential for maintaining biodiversity and ecosystem health.

潮汐的概念既迷人又对理解海洋环境至关重要。与潮汐相关的一个重要术语是semidiurnal，它指的是一种潮汐模式，其特点是在每个农历日中出现两个高潮和两个低潮。这种现象发生在世界许多沿海地区，不仅影响海洋生物，还影响人类活动，如捕鱼、航运和海岸管理。在这篇文章中，我将探讨semidiurnal潮汐的重要性、其成因及其对各种生态系统的影响。潮汐主要是由月球和太阳对地球海洋的引力作用引起的。随着地球的自转，地球不同区域经历不同的引力，这导致海平面的升降。在潮汐模式为semidiurnal的地方，海洋大约每六小时经历一次高潮。这种规律性为适应这些周期的海洋生物创造了一个可预测的环境。semidiurnal潮汐的一个主要好处是它们在沿海生态系统中的营养分布作用。在高潮期间，水淹没潮间带，使海洋中的营养物质流入河口和沿海栖息地。这种涌入支持了多种物种的生存，包括鱼类、螃蟹和软体动物，它们依赖这些营养物质生存。相反，在低潮期间，许多生物暴露在空气中，有些甚至会钻入沙子或泥土中以避免干燥。semidiurnal潮汐的动态特性确保这些生态系统保持生机勃勃和富有生产力。此外，semidiurnal潮汐对人类活动也有重要影响。例如，渔民通常会选择在高潮期间出海，因为这增加了他们在这些时段捕到进入浅水区的鱼类的机会。此外，航运行业在规划船舶的到达和离开时，必须考虑潮汐模式，特别是在低潮时浅水可能妨碍航行的港口。海岸管理实践也考虑了semidiurnal潮汐。例如，海堤、码头和其他基础设施的建设必须设计以承受潮汐变化的力量。如果不考虑这些模式，可能会导致侵蚀和对沿海社区的损害。此外，理解semidiurnal潮汐模式可以帮助预测气候变化的影响，因为海平面上升可能会改变传统潮汐周期并破坏既定的生态系统。总之，semidiurnal潮汐模式是我们星球海洋系统的重要组成部分。它的影响超越自然界，影响人类活动和海岸管理策略。通过欣赏semidiurnal潮汐的重要性，我们可以更好地保护和维持我们的沿海生态系统的微妙平衡，同时确保人类利益也得到考虑。随着我们继续研究和理解这些模式，越来越清楚潮汐与地球生命之间的关系是复杂的，对维持生物多样性和生态系统健康至关重要。