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- PH is 6.5 to 8, no sulfur or fluorid. PH值为6.;5到8之间,不含硫、氟化物。
- Sulfur can be used to make gunpowder. 硫磺可以用来制造火药。
- sulfur fluoride 氟化硫
- Iron and steel with too much sulfur are red-short. 含硫过多的铁和钢都是热脆性的。
- Does fluoride help prevent cavities? 氟可以防止蛀牙吗?
- Lab Experiment on Harm of Fluoride on Rubber Trees. 大气氟化物对橡胶树的伤害实验研究。
- Dried Aluminium Fluoride Producing Facility. 干法氟化铝生产装置建设。
- Sulfur is an essential nutrient for plants. 硫是植物的一种重要的营养元素。
- Study on Polyvinylidene Fluoride Coating. 聚偏氟乙烯涂料的研究。
- To eliminate sulfur from(petroleum, for example). 脱硫(例如,从石油中)除硫
- Fluoride has many effects on cell mem brane . 氟对细胞膜有多方面的影响。
- The unionized sulfur species is ??in water. 溶于水中非电离形式的硫即?妗?/UK>
- Isn't sulfur important in chlorophyll formation? 硫对叶绿素的形成很重要,对吗?
- A sulfide compound containing at least two sulfur atoms per molecule. 多硫化物每个分子中至少含有两个硫原子的一种硫化物
- There was the smell of sulfur, like burning tires. 那味道闻起来像是硫磺,像是燃烧的轮胎一样。
- Control sulfur levels in FCC products. 控制流化催化裂化生产中硫的排放。
- Enolase isolated from peas was sensitive to fluoride. 从豌豆提取的烯醇酶对氟化物敏感。
- Sulfur is twice as heavy as oxygen. 硫是氧的两倍那么重。
- DCS has been used in 40 kt/a sulfur recovery plant. 40 kt/a硫磺回收装置自动控制采用DCS集散控制系统。
- I had spent three days shooting the sulfur miners. 我花了三天时间来拍摄硫磺采矿者。