face-hardened
美
英 
英漢解釋
例句
As his mother read it, her face hardened and became more expressionless.
母親讀信時,臉沉了下來,變得更加沒有表情。
The doctor nodded, thoughtful, his fingers probing gently against the glands under my jaw. Charlie's face hardened.
醫生點點頭,思索著,他的手指溫柔地讓挫入我顎下的腺體。查理的臉繃緊了。
On this basis, the contrast test of die lifetime was done, the reasonable die material and face-hardened technology were determined.
在此基礎上,進行了模具壽命對比試驗,確定了合理的模具選材和表面強化工藝。
His face hardened at the word.
他聽到這話,臉沉了下來。
Profile Modification of Diagonal Contact Error in Scraping Face-hardened Spiral Bevel Gear
弧齒錐齒輪硬齒刮削加工中對角接觸誤差的修正