Windpipes have been grown from stem cells before, but only using the collagen "skeletons" of donated tracheas.
之前，也有由干细胞培育气管的先例，培育中使用的是捐献者的气管胶原蛋白骨架。
Mr Stearns has met men who routinely killed 100 people a day, "using a rope to crush their windpipes and strangle them".
斯特恩斯遇见过曾每天弑命百条的人，他们“用绳子勒住他们的气管，把他们勒死”。
But when rabbits with blocked windpipes received injections of the microparticles, their blood oxygen levels and heart rates remained stable.
给气管阻塞的兔子注射这种微粒时，它们的血液氧气浓度和心率保持稳定。
But when rabbits with blocked windpipes received injections of the microparticles, their blood oxygen levels and heart rates remained stable.
给气管阻塞的兔子注射这种微粒时，它们的血液氧气浓度和心率保持稳定。
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