膨胀系数;
Water has a variable coefficient of expansion.
水的膨胀系数是可变的.
Copper, with its extremely high coefficient of expansion, expands more during heating than steel does.
由于铜的膨胀系数特别高, 铜在加热时比钢膨胀得多.
After jointing, coefficient of expansion leads to remain force.
接合后存在残余应力起因于材料的热膨胀系数.
The housing has a higher coefficient of expansion than the ring.
壳体比圆环具有较高的膨胀系数.
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