npg

npg

美 [?enpi?d?i] 　英 [?enpi??d?i?]

  • n.人口負增長
  • 網絡新戊二醇；日暮里；孔金

英漢解釋

n.
1.
人口負增長,人口出生率低于人口死亡率的情況

英英解釋

n.

例句

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

南京臨時政府認為，從中國整個歷史看，歷來就是一個多民族的統一國家。

NPG was the first democratic government in ancient China.

南京臨時政府是“中國”的第一個民主政府。

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

結果表明，甲醇的滲透率遠大于新戊二醇和三羥甲基乙烷的滲透率。

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

另外，K_2CO_3粉末的存在對NPG催化氧化苯甲醇有較明顯的促進作用。

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

利用差示掃描量熱法測定三羥甲基乙烷-新戊二醇二元體系的相圖

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

過量空氣系數對天然氣發動機燃燒及排放的影響