外交斡旋 diplomatic mediation
内旋/外旋 Turn inward/outward
外消旋混合物 [化学] Racemic mixture ; dl racemic mixture of dextro-and
外旋轮线 [数] epitrochoid
螺旋外侧升角 [机] outside spiral angle
外消旋体 [植] raceme ; racemic mixture ; [植] racemate
外旋发球 Twist Serve
外旋 extorsion ; outward turning ; external rotation
外消旋化 [化学] racemization
上肢外展和旋外肌群的收缩对球拍的加速起到主要作用。
The rotary muscle of upper limbs do main favour in speeding the racket .
因此，倘若尸身被置于火场中，会完全扭曲外消旋化技术所判断的牙齿外观年龄——尸身被置于沙漠也同理。
So being in a fire will totally distort a tooth's apparent age via this technique - as might being left in a desert.
顺便说一下，如果你好奇为什么在判断牙齿年龄方面、外消旋化会比碳14定义的时钟精度差之甚多，那么部分原因与温度相关。
By the way, if you're curious about why racemization is so much less accurate a clock than C-14 for dating a tooth's age, part of the explanation has to do with temperature.
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