The invention relates to the field of metal metallurgy, in particular to a method for segmented acid-adding and circulating leaching of coarse particles in low-grade nickel oxide ores.

本发明涉及金属冶金领域，特别是指一种对于低品位类氧化镍矿中的粗粒分段加酸循环浸出的方法。

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That's why cameras use flashes in low-light environments: the flash gives the camera's sensors an extra dose of photons, the particles that make up light, Fergus says.

费格斯说，照相机在光线昏暗的情况下需要使用闪光灯的原因是：闪光给照相机传感器提供大量额外光子，光线正是由这种粒子组成的。

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CDMSII operates at extremely low temperatures and detects the energy released when particles hit atoms in germanium and silicon crystals within the detectors.

低温暗物质研究II号在极度低温中进行，并侦测（暗物质）粒子在探测器重撞击锗元素以及硅晶体时释放的能量。

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Coronary artery disease begins when excess cholesterol particles, called low-density lipoprotein particles, become lodged in the artery wall over time and get chemically damaged, or oxidized (close-up diagram).

FORBES

Ergo, if our universe is just a simulation, there should be a cut off in the spectrum of high energy particles, and low and behold, there is -- the Greisen-Zatsepin-Kuzmin or GZK cut off.

ENGADGET: Alt-week 10.13.12: is the Universe a simulation, cloning dinosaurs and singing mice

He explained that ground-based radars are able to track objects of about 10cm (3.9 inches) and sometimes smaller, depending on altitude above the earth, while other sensors can detect particles down to about 5mm (0.2 inches) in low earth orbit.

CNN: Space harpoon plan to nail orbital garbage