... 塑料的降解plastic degradation 塑料的老化plastic ageing 酸碱中和滴定acid-base neutralization titration ...
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Figures for 2005 from the British Association of Aesthetic Plastic Surgeons show a 40% increase in anti-ageing treatments including face-lifts.
英国整型外科医生协会2005年的数据显示，包括脸部拉皮在内的抗老化治疗，已经增加40%。
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Northern Gas Networks said it was replacing ageing metal gas mains with plastic equivalents to "reduce gas leakage and enhance network reliability".
BBC: Generic water works
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