crawler

n.

爬行者，爬行动物；

复数：crawlers

crawler crane履带起重机；履带吊

crawler tractor覆带式拖拉机

1. We plan to use two 90T lifting slings for the 400T crawler crane.
   我们准备给400T履带吊机使用两条90T吊带。
2. Snails and slugs are indeed a part of the creepy crawler kingdom.
   蜗牛和蛞蝓确实是爬行类动物王国的一部分。
3. The launcher and vehicle are then transported to the firing pad by a crawler.
   发射器和飞行器由一个爬行轨道送到点火台。

A Crawler-based Study of Spyware in the Web
A crawler-based study of spyware on the web
UbiCrawler: a scalable fully distributed web crawler
An adaptive crawler for locating hidden-Web entry points
Mercator: A scalable, extensible Web crawler
Mercator: A scalable, extensible Web crawler
The Evolution of the Web and Implications for an Incremental Crawler
Design and implementation of a high-performance distributed Web crawler
An Adaptive Model for Optimizing Performance of an Incremental Web Crawler
An adaptive model for optimizing performance of an incremental web crawler