“National High Grade Inland Waterway”的概念、定义、翻译、参考文献-科学参考

单词	National High Grade Inland Waterway
释义	National High Grade Inland Waterway Encyclopedia 工学航道释 National High Grade Inland Waterway国家高等级航道已有和规划建设为可通航千吨级船舶的三级及以上航道，个别地区的航道受条件限制为可通航500吨级船舶的四级航道。
随便看	Galactic anticenter Galactic arm galactic arm Galactic arm-population Galactic astronomy galactic astronomy Galactic astrophysics galactic astrophysics Galactic background Galactic background infrared radiation Galactic background radiation Galactic background radio radiation Galactic background X-ray radiation Galactic background γ-ray radiation Galactic bar galactic bar galactic bridge Galactic brightness galactic brightness galactic bubble Galactic bulge galactic bulge galactic cannibalism Galactic center galactic center

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