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

它是该细字，是大肠杆缩写。

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

E.coli是Escherichia coli缩写。大肠杆是一种细，通常情下对人体是无害。

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

实际上，腐生葡萄球是继大肠杆之后导致尿路次常见病原。

Escherichia coli are bacteria found in the environment.

大肠杆是在环境中发现细。

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——大肠杆来批量生产这种蛋白质，而大肠杆在生物体内普遍存在，是生物工程中常用" 苦力" 。