These pigs had acquired lungworm infestations presumably containing masked influenza virus under natural conditions . 这些猪在自然条件下已受到含有隐蔽流感病毒的肺丝虫寄生。
The oxygenator, which gives the blood the oxygen with the body needs, is also part of the heart-lung machine . 心肺机中含有一部分叫供氧器，是往血液里送氧的，而氧是血液里所必需的。
Macrophages phagocytize foreign materials such as dust and carbon particles in the lung, as well as vital dye particles . 巨噬细胞吞噬异物，如肺内的尘埃及碳粒，同样还有活体染料的微粒。
Colored circles on the map denoted kidney dialysis machines, oxygen generating units, iron lungs and similar apparatus . 图面上彩色的圆圈表示肾透析机，氧气发生器，铁肺以及诸如此类的装置。
Nonspecific cellular defense mechanisms in the lung rest principally on epithelial cell elements and several types of phagocytic cell . 肺中非特异性细胞防御机理主要在于表皮细胞和几种有吞噬作用的细胞。
As a rule the swine infested with the lungworms carrying the "masked virus" did not develop swine influenza immediately upon infestation with the lungworm . 通常，受到携带了“隐蔽病毒”的肺丝虫侵袭的猪，并不因肺丝虫的侵袭立即发生流感。
