A molecule of ammonia is made up of one atom of nitrogen and three atoms of hydrogen .

氨分子包含一个氮原子和三个氢原子。

属类：综合句库--

Diesel engine emissions--Determination of total hydrocarbons--Hydrogen flame ionization method (HFID)

柴油机排气中总碳氢化合物的测定氢火焰离子化法

属类：行业标准名称-国家标准名-GB/T8193-1987

Pure hydrogen ,high purity hydrogen and ultra pure hydrogen

纯氢、高纯氢和超纯氢

属类：行业标准名称-国家标准名-GB/T7445-1995

When heated, PVC may lose hydrogen chloride and form a chromophoric conjugated polyene structure.

当受热时,PVC可能失去氯化氢并形成一种有色的共轭聚烯结构。

属类：自然科学--

Fuel Cell and Hydrogen Network Fuel Cell and Hydrogen Network Nordrhein Nordrhein-Westfalen Westfalen

德国燃料电池和氢能源网络公司德国燃料电池和氢能源网络公司

属类：综合句库--

Basic environmental testing procedures for electric and electronic products--Guidance for hydrogen sulphide test for contacts and connections

电工电子产品基本环境试验规程接触点和连接件的硫化氢试验导则

属类：行业标准名称-国家标准名-GB/T2424.12-1982

A power supply that uses a microturbine fueled by a six-day supply of liquid hydrogen , backed up by rechargeable 3-hour battery patches embedded in the helmet liner or attached to the weapons pod

电源是一台可持续工作6天的液氢微型涡轮发电机和一组藏在头盔内衬里或装在武器箱中可供电3小时的可充电电池片。

属类：综合句库--

A short-lived association of an electron and a positron bound together in a configuration resembling the hydrogen atom.

电子偶素，正电子素电子与正电子的短暂结合物，两者的结合物与氢原子的结构十分相似

属类：综合句库--

determination of the mass concentration of sulfur dioxide(hydrogen peroxide/barium perchlorate/thorin method)

二氧化硫的质量浓度的测定-过氧化氢/高氯酸钡/钍试剂法

属类：行业标准名称-试验方法-

Containing two replaceable hydrogen atoms.

二元的含有两个可取代的氢原子的

属类：综合句库--

A two-component rocket propellant,such as liquid hydrogen and liquid oxygen,fed separately to the combustion chamber as fuel and oxidizer.

二元燃料一种二元火箭燃料，如液氢和液氧，作为燃料和氧化剂分别加入燃烧仓

属类：综合句库--

A compound,such as sodium peroxide,Na2O2,that contains a peroxyl group and yields hydrogen peroxide when treated with an acid.

过氧化物一种包含一个过氧团离子的化合物，Na2O2，遇酸可生成过氧化氢，如过氧化钠

属类：综合句库--

A cell organelle containing enzymes,such as catalase and oxidase,that catalyze the production and breakdown of hydrogen peroxide.

过氧物酶体一种包含酶的细胞器官，如催化剂和氧化剂，能够催化过氧化氢的生成和分解

属类：综合句库--

Hydrogen sulphide bearing gas or water is postulated to be an important reductant in several areas

含硫化氢的气体和水被认为是某些地区的一种主要的还原剂。

属类：综合句库--

Any of various halocarbon compounds consisting of carbon,hydrogen ,chlorine,and fluorine,once used widely as aerosol propellants and refrigerants.Chlorofluorocarbons are believed to cause depletion of the atmospheric ozone layer.

含氯氟烃由碳、氢、氯及氟构成的卤烃化合物，曾经作为喷雾容器中推进剂及致冷剂被广泛使用，含氯氟烃被认为会导致大气臭氧层的枯竭

属类：综合句库--

Sponge titanium,titanium and titanium alloys--Determination of hydrogen content--Vacuum heating gas gas chromatographic method

海绵钛、钛及钛合金化学分析方法真空加热气相色谱法测定氢量

属类：行业标准名称-国家标准名-GB/T4698.15-1996