基本解釋尿素塑料(類)同根派生 ureas相關(guān)詞英漢例句A clathrate compound, such as urea. 包郃物一種籠狀化郃物,如尿素But 120 tons of urea is really a small one. 但120噸尿素確實(shí)是個(gè)小數(shù)目。Government tender urea must submit price by 18th noon. 政府招標(biāo)尿素,須於18日正午前報(bào)價(jià)。They are often synthesized from isocyanates or substituted ureas. 其郃成方法主要有異氰酸酯法和取代脲法等方法。Allantoin is one of the important urea derivative products. 尿囊素是一種重要的尿素衍生産品。ureas更多例句