Those bubbles arise because the thin sticker film expands at a different rate than the window glass when they both heat up.
那些气泡出现的原因在于：热胀冷缩时，车贴薄膜的延展性和车窗玻璃大不相同。
By optimizing composition, foundry method, melting process and heat treatment process, the rate of qualified castings was increased up to 85%.
通过对成分、铸造工艺、熔炼工艺及热处理工艺的优化，使铸件的工艺出品率达到85%。
If there is any doubt regarding the turndown capability of the furnace to achieve this heat up rate, the furnace should be started after the addition of gasoil.
如果对加热炉负荷大小是否能达到这样的加热速度有任何怀疑，应在加入柴油后开加热炉。
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