concentration point的用法和樣例：
例句
- Houston has become petroleum and the petroleum and chemical centre, gas network of pipe lines point assembling , centre being also that the astronavigation studies and develops.
休斯敦現已成為石油與石化中心，天然氣管道網(wǎng)的匯集點(diǎn)，也是宇航研究和發(fā)展的中心。
concentration point的相關(guān)資料：
臨近單詞
concentration key
concentration
concentration on civil rights
concentration by closing eyes
concentration of rail stresses
concentration of sulfuric acid
concentration-gradient curve
concentration of total mercury
concentration explosive limits
Concentration of human capital
concentration of pesticide fog
concentration of air pollutant
