M13 is home to over 100,000 stars and located at a distance of 25,000 light-years.

M 13是超过十万颗恒星的家园，距我们25000光年。

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M13 bacteriophage has been extensively applied in phage surface display technique.

M 13噬菌体已被广泛地应用于噬菌体展示技术。

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M13 is home to over 100, 000 stars and locatedat a distance of 25, 000 light-years.

M13是超过十万颗恒星的家园，距我们25000光年。

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M13 was the 13th male from that group to be born in the wild.

CNN: Switzerland's only wild bear is killed as a danger to humans

The risk remains that other bears might follow in M13's paw prints and stray into Switzerland's Grisons area.

CNN: Switzerland's only wild bear is killed as a danger to humans

Joanna Schoenenberger, an expert on bears at the WWF, said it was far too soon to shoot M13.

CNN: Switzerland's only wild bear is killed as a danger to humans