facture toughness的用法和樣例：
例句
- This paper focuses on the change of bending properties and toughness of larch wood after intensive microwave treatment.
摘要著(zhù)重考查了經(jīng)過(guò)高強度微波輻照后，落葉松木材沖擊韌性和彎曲性能的變化。 - We carried out experiment decreasing oxygen content of powder forging steel and heat treatment to increas shock toughness of powder forging steel.
為進(jìn)一步提高粉末鍛鋼的沖擊韌性，進(jìn)行了降低粉末鍛鋼的氧含量和熱處理試驗。
