This tissue gram stain of an acute pneumonia demonstrates gram positive cocci that have been eaten by the numerous PMN's exuded into the alveolar space.

革兰氏染色显示大量渗出到肺泡腔的嗜中性粒细胞吞噬了革兰阳性菌。

youdao

Such organisms are so named because they don't pick up the purplish dye used in the test to distinguish them from gram-positive bacteria.

这类细菌之所以被如此命名是因为他们和革兰氏阳性菌相比不能吸收淡紫色的染料。

youdao

In soft tissue and bone infections in warm countries we've known for some time that Gram-negative organisms can be as important or more important than Gram-positive infections.

我们已经知道，在温暖国家，软组织和骨骼感染时，有时候革兰氏阴性病菌和革兰氏阳性病菌一样重要，甚至更重要。

youdao

Scientists divide bacteria into so-called "gram positive" varieties like Strep, which lack rigid cell walls and can be stained with dye, and "gram negative" ones that have cell walls and aren't dyeable.

FORBES: Bleeding Edge

They tested their treated materials with Staphylococcus aureus and Escherichia coli, the gram-positive and gram-negative bacteria that are always giving humans a bad day.

FORBES: New Antibacterial Clothing: Secret Ingredient Revealed