Formation of single endosomes on cell membrane was analysised by total internal reflection fluorescence microscopy at first.

这是首次用全内反射荧光显微术测定了细胞中的内吞转铁蛋白形成内涵体的过程。

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The scientists found that when a cell first receives a signal from a growth factor, ten groups of genes, about 8,000 in total, become activated.

科学家发现，当细胞首次接收到生长因子的信号时，有10组共8000个基因被激活。

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The project to deliver a fleet of the zero emission taxis to the streets of London in time for 2012 is on track, with the first Fuel Cell Black Cabs covering a combined total of over 8, 000 miles in road and test track testing conditions.

ENGADGET: UK's first fuel cell-powered black cab hits the streets of London

Touting itself as the industry's "first smart mobile provider, " Zact takes an entirely different tact to cell phone service, offering the consumer total control over voice, text and data plans, even across multiple devices.

ENGADGET