二氧化氮

Nonetheless, Chinese authorities said Thursday that Beijing had 12 more blue-sky days this year compared with last, as well as drops in major pollution indexes that monitor concentrations of sulfur dioxide, carbon monoxide, nitrogen dioxide and particulate matter.

尽管如此，中国有关部门上周四表示，北京今年截至目前的蓝天数量较去年同期增加了12天，衡量二氧化硫、一氧化碳、二氧化氮和可吸入颗粒物的浓度的主要污染物指数也有所下降。

The concentration of nitrogen dioxide in Beijing's air was reduced by an average of 20 per cent.

北京空气中二氧化氮的含量平均降低了20%。

Our factory is specialized in producing any of the following products: iodine sublimation tubes, connectors, Erlian ball on the wall, liquid convection experiments, and demonstration devices, U-type the highest minimum, capillarity, platinum and gold bars, Sheng liquid cylinder liquid internal pressure, small pressure, the nitrogen ball, scale straw, demonstration thermometer, water, electricity and gas, Newton tubes, a variety of test-tube funnel, chemical use test tubes, glass rods, Glue stick, glue the first dropper, all kinds of beaker , flask, measuring cup, graduated cylinder.

我厂专业生产下列产品：碘升华管，连通器，二连球，对器壁，液体对流实验器、演示器，U型最高最低，毛细现象，铂金丝棒，盛液筒，液体内部压强，微小压强计，二氧化氮球，刻度吸管，演示温度计，水电解气，牛顿管，各种试管漏斗，化学多用试管，玻棒，胶棒，胶头滴管，各种烧杯，烧瓶，量杯，量筒。

Nitrogen dioxide is a free radical of very importance. Laser Magnetic Resonance isa powerful technique in the study of hyperfine and Zeeman characteristics of free radicals.

二氧化氮是很重要的分子，激光磁共振是研究自由基超精细结构和Zeeman特性最强有力的手段之一。

In the old lead chamber processnitrogen dioxide (NO2) was used for the oxidation though in practice mixtures of nitrogen oxides were used.

早期的铅室法工艺中用二氧化氮来氧化二氧化硫，尽管在实际生产中用的是氮氧化物的混合物。

Luminal Chemiluminescence''s is an ASTMEPA standard method for atmospheric monitoring of nitrogen dioxide.

Luminal Chemiluminescence''s 是一个 ASTMEPA 的标准用来监视大气中二氧化氮的浓度。

Hemodynamic data, nitrogen dioxide (NO2) and methemoglobin concentrations were measured while increasing concentrations of NO were administered (0, 10, 20, 40, 80, 120 parts per millio n).

吸入不同浓度NO（0，10 ，20，40，80，120ppm）。在各时相分别进行血液动力学指标、二氧化氮和高铁血红蛋白浓度监测。

Hennessy Rd, Canton Rd, King's Road, Des Voeux Rd, and Nathan Road showed especially high levels of nitrogen dioxide and particulate matter.

轩尼斯道、广东路、德辅道和弥敦道显示特别高水平的二氧化氮和粒状污染物。

The concentration of nitrogen dioxide in Beijings air was reduced by an average of 20 per cent.

北京空气中二氧化氮的含量平均降低了20%。

Changes in sensory are the most sensitive indicators of the presence of nitrogen dioxide.

感觉的改变是二氧化氮存在的最灵敏的标志。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。