Opalon
[化] 氯乙烯树脂及其化合物的商品名
🗣️ 情景例句
Then there's hope for Robbie.
看来Robbie 还有希望。
We trust that you will quote us your most favorable price for big quantities.
相信由于我方大量订购贵方能报最优惠价格。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。