razor blade

1.It was thinkable that the razor blade might arrive concealed in his food, if he were ever fed.

即使给他送吃的来，象地里面会藏着刀片。

2.The practical investigation on the razor blade of scissors of steel plate was conducted and it's life was improved notablely.

并且在钢板的剪切机刀片上作实际考核，寿命大大提高。