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- adding ratio of hydrogen 掺氢比
- Dimethoxymethane possesses higher quantity of oxygen, higher ratio of hydrogen to carbon and lower flash point. 甲缩醛含氧量大、氢碳比高、闪点低，加入柴油中能够提高其十六烷值。
- The key to the surprising discovery is tequila's ratio of hydrogen, oxygen, and carbon, which lies within the "diamond growth region. 这一惊人发现的关键是龙舌兰中碳氢氧的比例，其恰好符合“钻石的生长域”。
- It can avoid the influence of crystal water and adsorbed water in catalyst in the process of determining the content of hydrogen of coke. So the method can improve the precision of determining the ratio of hydrogen to carbon of coke on catalyst. 这种测定方法避免了在测氢过程中催化剂结晶水和吸附水对测定结果的影响 ,大大提高了催化剂上焦碳H C的测定精度
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- The photochemical Micro-reaction of hydrogen and chorine and the condition, such as the light intensity, the purity of the gas the volume ratio of the mixed gas, the time interval is discussed. 对氢氯混合气体光化反应实验进行了微型化改进，并对微型反应的光照强度、气体纯度、混和气体的体积比、以及气体混合后进行强光照射的时间间隔等反应条件进行了研究。
- The effects of the atomic ratio of carbon and zirconium and the flowrate ratio of hydrogen and argon in the coating gas on the characteristics and structure of ZrC coating layer were studied. 研究表明碳化锆镀层的密度随沉积温度而变化，反应气体中碳锆的原子数比值和氢氩流量比值影响碳化锆镀层性能和结构。
- It is indicated that when the added ratio of metal is the same,the improvement is greater for PCMs with low conductivity than th... 在相同的添加比例下,低热导率相变材料有效导热系数的改善程度要大于高热导率相变材料。该方法的求解结果与相关文献吻合较好。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- A molecule of water consists of two atoms of hydrogen and one atom of oxygen. 水分子含有两个氢原子和一个氧原子。
- Water is a compound of hydrogen and oxygen. 水是氢和氧的化合物。
- Atoms of hydrogen are fused to make helium. 氢原子可熔合成氦。
- Water,you know,is made up of hydrogen and oxygen. 你知道，水是由氢和氧构成的。
- The ratio of men to women was two to one. 男女的比例是二比一。
- The Balmer Formula is concluded from the relations among four mixed and disorderly digits calculated from the ratios of wave lengths of four spectral lines of hydrogen to their ultimate wave lengths. 由氢的 4条谱线的波长与其极限波长之比得出四个杂乱的数 ,从其关系中得出巴尔末公式。
- Water is formed of hydrogen and oxygen. 水由氢氧构成。
- The ratios of 1 to 5 and 20 to 100 are the same. 1与5之比和20与100之比相同。
- Water is made up of hydrogen and oxygen. 水是由氢和氧两种元素组成的。
