钢结构表面应干净，结构主要表面不应有疤痕、泥沙等污垢。

Steel surface should be clean, not a scar on the major surface structures, such as silt dirt.

youdao

大多数中和抗体识别血凝素，这是主要表面糖蛋白的流感病毒。

Most neutralizing antibodies recognize hemagglutinin , which is the major surface glycoprotein of influenza viruses.

youdao

家中患者康复后，要立即对主要表面进行消毒，并清洗床单和毛巾。

And once your home is rid of disease, disinfect major surfaces and wash sheets and towels.

youdao

They might ingest extracellular antigen, presented pieces of it on their cell surface in the context of MHC-2.

它们可以吞噬胞外抗原,根据细胞表面的,主要组织相容性抗原-2

耶鲁公开课 - 生物医学工程探索课程节选

You need to do that to be able to control the shield that's as big as that and as heavy as that, because it is made fundamentally of a heavy wood, typically covered by leather, sometimes with some bronze, a bronze sheet across the front of it as well.

如果你想自如操控这块盾牌就必须得这样,这种盾牌很大并且很笨重,因为它主要是由沉重的木材制成,表面一般覆有皮革,或包上铜皮,就是表面上有一层铜皮

耶鲁公开课 - 古希腊历史简介课程节选

We talked about host cells that are perhaps infected with a virus, displaying pieces of that virus, antigenic pieces of that virus in the context of a surface receptor called MHC-1, presenting that.

我们说到过,可能受到病毒感染的宿主细胞,表现出病毒的一部分特征,病毒的抗原部分,其表面受体称为主要组织相容性抗原-1,MHC-1负责呈递抗原

耶鲁公开课 - 生物医学工程探索课程节选