Silastomer
硅塑料
🗣️ 情景例句
Who is it?
是谁?
And I got it on sale.
我在大减价时买的。
and the search for oil has done more to improve deep drilling than any other mining activity.
寻找石油比其他任何采矿业对改进深孔钻探作的贡献都要大。