npg

npg

美 [ˌenpiˈdʒi] 　英 [ˌenpiːˈdʒiː]

• n.人口负增长
• 网络新戊二醇；日暮里；孔金

英汉解释

n.	1. 人口负增长,人口出生率低于人口死亡率的情况

英英解释

n.	1. negative population growth, a condition when the birth rate is lower than the death rate

例句

For the whole Chinese history, NPG been considered ancient China as a multi-ethnic unified country.

南京临时政府认为，从中国整个历史看，历来就是一个多民族的统一国家。

NPG was the first democratic government in ancient China.

南京临时政府是“中国”的第一个民主政府。

The results showed that the permeability of methanol is far greater than the Neopentyl Glycol(NPG) and trimethylol ethane(PG).

结果表明，甲醇的渗透率远大于新戊二醇和三羟甲基乙烷的渗透率。

Moreover, the introducing of anhydrous K_2CO_3 significantly promoted the activity of NPG catalyst for benzyl alcohol oxidation.

另外，K_2CO_3粉末的存在对NPG催化氧化苯甲醇有较明显的促进作用。

Determination of Phase Diagrams of PG-NPG Binary System by Differential Scanning Calorimetry

利用差示扫描量热法测定三羟甲基乙烷-新戊二醇二元体系的相图

Influence of Excessive Air Coefficient on Combustion And Emission of NPG Engines

过量空气系数对天然气发动机燃烧及排放的影响