It's an abbreviation for Escherichia coli, the name of a bacteria.

它是该细的名字，是大的。

In fact, Staph saprophyticus is the second most common cause of UTI after Escherichia coli.

实际上，腐生葡萄球是继大之后导致路感染的次常见病原。

E.coli is short for Escherichia coli. It is a kind of bacterium that is normally harmless.

E.coli是Escherichia coli的。大是一种细，通常情况下对人体是无害的。

Escherichia coli are bacteria found in the environment.

大是在环境中发现的细。

Using genetic engineering, the team managed to persuade a different bacterium-Escherichia coli, a ubiquitous critter that is a workhorse of biotechnology-to manufacture this protein in bulk.

并采用基因工程技术设法让另一种细——大来批量生产这种蛋白质，而大在生物体内普遍存在，是生物工程中的常用" 苦力" 。