您要查找的是不是:
- But bivalent and trivalent metal salts of the phosphoric acid had little effect on properties of iPP. 而二价的钙盐、镁盐、锌盐和三价的铝盐的成核效果不明显。
- The origin of the fluorescence quenching of P1 and P2 for trivalent metal ions in aqueous solution arised from two factors: energy or electron transfer and interchain aggregation. 3、设计、合成了三个具有不同侧链结构的聚对苯撑乙炔(PPE)的衍生物,其主链分别带有叔胺基团(P1)、烷氧长链(P2)和长烷基链(P3)。
- A trivalent metallic element of the rare earth group, it could occurs with yttrium. 稀土属三价金属元素,可以与钇共生。
- She knows why the metal is the good conductor. 她知道金属为什么是好的导体。
- Can I fasten these metal plates with rivets? 我可以用铆钉把这些金属板固定在一起吗?
- a trivalent metallic element of the rare earth group 稀土属三价金属元素
- You need a strong adhesive to bond wood to metal. 需要强力胶才能把木料粘在金属上。
- The car was now just a pile of twisted metal. 那辆汽车已经成了一堆压缩的废铁了。
- a bivalent and trivalent metallic element of the rare earth group. 稀土属二价和三价金属元素。
- The metal basin clattered down the stone stairs. 金属盆子沿着石阶滚了下去,发出咣啷声。
- Aluminum is a kind of light silvery metal. 铝是一种轻薄并呈银色的金属。
- The aeroplane wing showed signs of metal fatigue. 机翼显出有金属疲劳的现象。
- The metal frame tends to twist under pressure. 这种金属框受压後容易变形。
- The ship was broken up for scrap metal. 这艘船拆毁了当废铁用。
- Being heated, the metal is rapidly melting. 由于受热,金属在迅速熔化。
- The metal has corroded (away) because of rust. 该金属已锈蚀。
- a trivalent metallic element of the rare earth group; occurs with yttrium. 稀土属三价金属元素,与钇共生。
- You need a powerful saw to cut through metal. 切割金属需用强劲的锯。
- The hot metal contracts as it cools (down). 热的金属一冷(下来)就收缩。
- One of several metal strips forming a leaf spring. 簧片构成片簧的几个金属片中的一个