double-ended spanner
发音：/?d?b?l-?nd?i?st ?sp?nt?n/
基础释义：一种特殊的图数据库索引，用于在节点间建立双向连接，以支持在节点间进行高效查询。
英语范文：
标题：Double-Ended Spanner Index
Double-ended spanner index is a special type of graph database index that allows efficient queries between nodes. It is designed to support bidirectional connections between nodes, making it possible to quickly retrieve information between any pair of nodes in the graph.
In a graph database, nodes represent individual entities and edges represent relationships between these entities. Traditional index structures, such as B-trees or inverted indices, are not suitable for efficiently querying graph databases because they only support unidirectional searches.
Double-ended spanner index solves this problem by allowing efficient searches in both directions. It indexes the relationships between nodes, so that any query can be answered quickly, regardless of the direction of the relationship. This allows for more accurate and efficient data retrieval in graph databases.
In conclusion, double-ended spanner index is a powerful tool that can significantly improve the performance of graph databases. It allows for more accurate and efficient searches between nodes, making it possible to handle large and complex graphs efficiently.
Double-ended spanner
Double-ended spanner是一种常用的工具，用于调整螺丝钉或其他紧固件。它有两个手柄，可以同时用于拧紧和松开螺丝钉，非常方便。
发音：英 [?da?lb?nd ?end?d ?sp?nt?n] 美 [?da?lb?nd ?end?d ?sp?nt?n]
Double-ended spanner在许多场合中都非常有用，例如在修理汽车、家具或其他机械设备时。它可以帮助人们快速、轻松地调整螺丝钉，节省时间和精力。此外，它还可以用于安装和拆卸各种紧固件，如螺栓、螺母等。
使用double-ended spanner时，需要注意以下几点：首先，要选择适合的规格和尺寸，以确保能够顺利地调整螺丝钉；其次，要使用适当的力矩，以免损坏螺丝钉或设备；最后，要保持工具的清洁和干燥，以延长其使用寿命。
以下是一篇围绕double-ended spanner的英语作文范文：
标题：Double-ended Spanner：我的工作伙伴
在我日常的工作中，double-ended spanner是我的得力助手。无论是修理汽车还是安装家具，它都发挥着重要的作用。它的两个手柄让我能够同时进行拧紧和松开操作，大大提高了工作效率。
使用double-ended spanner时，我总是小心翼翼地选择适合的规格和尺寸，以确保能够顺利地调整螺丝钉。同时，我也注意使用适当的力矩，以免损坏螺丝钉或设备。此外，我还保持工具的清洁和干燥，以延长其使用寿命。
double-ended spanner不仅方便实用，而且易于携带。无论是在家中还是在工作中，它都是一个不可或缺的工具。我相信，随着时间的推移，它将继续成为我工作中的一个好伙伴。
Double-ended spanner
Double-ended spanners are a type of wrench that can be used to tighten or loosen screws, bolts, and other fasteners. They have two handles at opposite ends, making it easy to use both hands to turn the tool.
Double-ended spanners are commonly used in construction and maintenance work, where they are essential tools for tightening and loosening various types of fasteners. They are also used in automotive repair and other industrial applications.
The main advantage of double-ended spanners is their versatility. They can be used to tighten or loosen screws, bolts, nuts, and other fasteners, making them very useful in a variety of situations. Additionally, they are easy to use and require little training to operate effectively.
However, like any tool, double-ended spanners can be misused or abused, leading to potential safety hazards or damage to the fasteners being tightened or loosened. Therefore, it is important to use them properly and safely to avoid any potential problems.
In conclusion, double-ended spanners are a versatile tool that is commonly used in construction and maintenance work, as well as in automotive repair and other industrial applications. They are easy to use and require little training to operate effectively. However, it is important to use them properly and safely to avoid any potential problems.
(Note: This is a basic introduction to double-ended spanners. For more detailed information, please refer to a relevant tool manual or online resources.)
