grab dredge

简明释义

抓斗挖泥船

英英释义

例句

1.The construction crew had to grab dredge 抓取挖掘 the riverbed to clear the site for the new bridge.

施工队必须grab dredge 抓取挖掘 河床，以清理新桥的工地。

2.During the environmental cleanup, volunteers were instructed to grab dredge 抓取挖掘 any debris from the lake.

在环境清理过程中，志愿者被指示要grab dredge 抓取挖掘 湖中的任何垃圾。

3.When the fisherman needed to collect more bait, he decided to grab dredge 抓取挖掘 from the nearby waters.

当渔夫需要收集更多饵料时，他决定从附近的水域中grab dredge 抓取挖掘。

4.The marine biologist needed to grab dredge 抓取挖掘 samples for her research on underwater ecosystems.

海洋生物学家需要grab dredge 抓取挖掘 样本用于她对水下生态系统的研究。

5.To improve water quality, the team planned to grab dredge 抓取挖掘 sediments from the bottom of the pond.

为了改善水质，团队计划从池塘底部grab dredge 抓取挖掘 沉积物。

作文

In the world of environmental science and marine engineering, the term grab dredge refers to a specific type of dredging equipment used to excavate material from the seabed or riverbed. This method is particularly important for maintaining navigable waterways, constructing ports, and restoring aquatic habitats. The grab dredge operates using a clamshell-like bucket that opens and closes to capture sediment and debris. Understanding how this equipment functions can help us appreciate its role in both industry and ecology.When we think about the necessity of dredging, it becomes clear that many waterways require regular maintenance to ensure safe passage for ships and boats. Sedimentation can accumulate over time, leading to shallower depths that may hinder navigation. The grab dredge is designed to combat this issue efficiently. By lowering the bucket into the water, operators can grab large amounts of sediment, which is then lifted to the surface and deposited at a designated location.Moreover, the importance of the grab dredge extends beyond just maintaining navigation. In many cases, dredging is essential for environmental restoration projects. For instance, when a river has been polluted or altered due to human activity, dredging can help remove contaminated sediments, allowing for natural recovery processes to take place. By utilizing a grab dredge, environmental scientists can carefully extract harmful materials while minimizing disruption to the surrounding ecosystem.However, the use of dredging equipment, including the grab dredge, is not without controversy. Critics argue that dredging can lead to habitat destruction and negatively impact marine life. For example, the removal of sediment can disturb breeding grounds for fish and other aquatic organisms. As such, it is crucial for dredging operations to be conducted responsibly, with thorough assessments and mitigative measures in place to protect vulnerable species.In conclusion, the grab dredge is a vital tool in the fields of marine engineering and environmental management. Its ability to efficiently remove sediment from waterways plays a crucial role in ensuring safe navigation and supporting ecological restoration efforts. However, as with any industrial practice, it is imperative to balance the benefits of dredging with the potential environmental impacts. By understanding the function and implications of the grab dredge, we can better appreciate its significance in our efforts to maintain healthy aquatic ecosystems and navigable waterways.

在环境科学和海洋工程的领域中，术语grab dredge指的是一种特定类型的疏浚设备，用于从海床或河床挖掘材料。这种方法对于维护可通航水道、建造港口和恢复水生栖息地尤其重要。grab dredge使用一个像贝壳一样的铲斗，通过打开和关闭来捕捉沉积物和碎屑。理解这种设备的运作方式可以帮助我们欣赏它在工业和生态中的作用。当我们想到疏浚的必要性时，很明显，许多水道需要定期维护，以确保船只和小船的安全通行。沉积物会随着时间的推移积累，导致水深变浅，从而可能妨碍航行。grab dredge旨在有效应对这一问题。通过将铲斗放入水中，操作员可以抓取大量沉积物，然后将其提升到水面，并在指定地点倾倒。此外，grab dredge的重要性不仅仅局限于维护航行。在许多情况下，疏浚对于环境恢复项目至关重要。例如，当一条河流因人类活动而受到污染或改变时，疏浚可以帮助去除受污染的沉积物，使自然恢复过程得以进行。通过利用grab dredge，环境科学家可以仔细提取有害材料，同时尽量减少对周围生态系统的干扰。然而，包括grab dredge在内的疏浚设备的使用并非没有争议。批评者认为，疏浚可能导致栖息地破坏，并对海洋生物产生负面影响。例如，去除沉积物可能会扰乱鱼类和其他水生生物的繁殖场。因此，疏浚操作必须以负责任的方式进行，必须进行全面的评估，并采取减缓措施以保护脆弱物种。总之，grab dredge是海洋工程和环境管理领域的重要工具。它高效去除水道沉积物的能力在确保安全航行和支持生态恢复工作中发挥着关键作用。然而，与任何工业实践一样，平衡疏浚的好处与潜在的环境影响至关重要。通过理解grab dredge的功能和影响，我们可以更好地欣赏它在维护健康水生生态系统和可通航水道方面的重要性。