Carbon ions, used in a handful of elite facilities, offer even higher precision and biological effectiveness compared to electrons and protons. Their Bragg peak—a sudden deposition of energy at a specific depth—makes them appealing for deep or complex tumors. But that unmatched precision comes at a steep price, with each facility costing upward of US $300 million. —T.C.
我们在享受科技红利的同时，必须学会解决创新带来的挑战。
PYTHONPATH=../../src python demo.py # 90 episodes, ~2 min，更多细节参见wps
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The Mini is a bite-sized version of The New York Times' revered daily crossword. While the crossword is a lengthier experience that requires both knowledge and patience to complete, The Mini is an entirely different vibe.