He has designed a needle that sterilises the areas it passes through after it has collected living cells for analysis.
他发明了一种新型针头，可以在采集到分析用的活细胞后，对针头所经过的地方进行杀菌处理。
2
It is so in a precise sense: it intervenes very heavily in the foreign currency market and it also sterilises the monetary consequences of the intervention.