您要查找的是不是：
- The Allison gearbox is mated to the 6.6-liter Duramax diesel engine, which will be overhauled to meet tough new EPA rules for nitrogen oxide (NOx) emissions that go into effect on January 1, 2010. 的是交配的6.;6升Duramax柴油发动机，这将是艰难的大修，以满足美国环保局的新规则，氮氧化物（氮氧化物）排放量开始生效2010年1月1日。
- Used formerly as a name for nitrogen. 氨氮这个名称的以前的用法
- Decomposition by heat, producing toxic nitrogen oxides. 受高热分解，产生有毒的氮氧化物。
- After harvesting the crops, he tested them for nitrogen content. 作物收获后，他测定了作物中氮的含量。
- In the spark-ignition engine, recirculating some of the exhaust gas reduces the emission of nitrogen oxides. 在火花点火的发动机中，再循环的一部分废气减少了氧化氮的有害污染物。
- An automatic analyzer for determination of total phosphorus in natural water. 自然水样总磷含量自动分析仪的研制。
- One obvious remedy is to reduce emissions of sulfur and nitrogen oxides to the atmosphere. 减少硫氧化物和氮氧化物向大气的排放量是一个有效的治理措施。
- It is the result of sunlight reacting with hydrocarbons and nitrogen oxides in the atmosphere. 它是阳光与大气中的碳化氢和氧化氮作用的结果。
- Sulfur dioxide and nitrogen oxides also cause acidic precipitation, commonly called acid rain. 二氧化硫和氨氧化物引起酸性降雨，常称为酸雨。
- Nitrogen oxides (NOX.) are produced when fuel is burned at very high temperatures. 氮氧化物（nox）产生于高温下的燃料燃烧。
- Critics says SUVs also produce more substances like carbon monoxide and nitrogen oxides. 评论人士认为，SUV还会制造出更多的像一氧化碳和氮氧化物之类的物质，
- The common colours are: blue for nitrogen, red for oxygen, yellow for sulphur and cyan for carbon. 颜色代表是：蓝色是氮，红色是氧，黄色是硫，蓝绿色(青色)是碳。
- Also, the stainless steel ion nitriding, low carbon steel ion nitriding, nitrogen oxides more prominent role. 另外，对不锈钢离子氮化、低碳钢离子氮化、氧氮化作用更加突出。
- Sulfur dioxide and nitrogen oxides also cause acidic precipitation,commonly called acid rain. 二氧化硫和氨氧化物引起酸性降雨，常称为酸雨。
- A new text, thickener was analyzed for its structure. 摘要对某种新型纺织增稠剂进行了剖析。
- It can use a wide range of hydrocarbon fuels, and yet undesirable emissions including nitrogen oxides are very low. 它可以使用广泛的碳氢化合物燃料，而污染物如氮氧化物的排放量则非常低。
- DWTT separation fracture has been analyzed for pipe line steel. 摘要文章对管线钢DWTT试样上出现的分离断口进行了分析。
- Choose a car with a 3-way catalytic converter, to reduce nitrogen oxides and hydrocarbons emissions by 90 per cent. 选购带3相催化转化器的汽车，可以将氮氧化物和碳水化合物排放量降低90%25。
- Nitrogen oxides (NOx) have a reddish-brown appearance often seen in car exhaust fumes. 二氧化硫是无色而有强烈气味的气体。
- According to the situation of water quality, you can select different equipments to constitute the pretreatment system in the on-line monitoring devices, such as the analyzer for TOC/COD monitoring, ammonia nitrogen and phosphorus . 可根据现场水质的情况，选择不同配置构成TOC/COD分析仪、氨氮、总磷等在线监测仪器的预处理系统。
