例句與造句

1. Discussion on technical standard of mine flame proof seal dam
   煤礦防爆密閉墻技術(shù)標(biāo)準(zhǔn)探討
2. Performance requirements and test methods for fire - proof sealing materials
   防火封堵材料的性能要求和試驗(yàn)方法
3. Semicarbazide , can be formed as a by - product of the process used to manufacture soft plastic seals commonly used in twist - off metal lids of glass jars and food bottles . these seals were widely used for more than 20 years , providing a reliable air - tight and tamper - proof seal
   氨基脲是生產(chǎn)軟封口塑料過程中形成的一種副產(chǎn)品，這種軟封口塑料通常用在玻璃罐子或者食物瓶子那種能一擰就開的金屬蓋子上，已經(jīng)廣泛使用了
4. It's difficult to find proof seal in a sentence. 用proof seal造句挺難的