Objective To provide safe depth and direction of need ling for clinical physicians.

目的：为临床医生提供安全的进针深度和角度的参考数值。

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For some students, including Wang Ling, 21, in Sun Yat-sen University, this practice has caused headaches.

对于包括21岁的中山大学学生王玲在内的一些学生来说，这种做法令人头疼。

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Seeing me in my new clothes, Sun Ling dashed out and bought a suit for herself.

看见我穿着新衣服，孙玲冲出去也买了一套。

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He played under U's boss Martin Ling at Leyton Orient, but has struggled for fitness in recent years and was most recently with Grays.

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Mr Ling, whose job includes loitering in public places for observation, watched a woman at an Oslo underground station who texted as she walked.

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Manager Martin Ling recently revealed that the club are on the hunt for an addition to their coaching set-up.

BBC: U's set to add to coaching staff