four momentum 四维动量
four momentum transfer 四动量转移
four-dimensional momentum 四维动量
four angular momentum 四维角动量
theorem of four angular-momentum 四维矢量型角动量定理
以上来源于: WordNet
The company opened four years in Chengdu, Chengdu has been made in the top three market position, strong development momentum.
公司在成都开业四年来，已取得成都市场前三名的地位，发展势头强劲。
The possibility of tinkering with the scalp's genes to prevent the onset of graying gained momentum four years ago when scientists made an albino mouse turn black in one patch.
四年前，科学家已经可以使患白化病的老鼠的一小块皮毛变黑，这为研究修补头皮基因来防止头发变灰的可能性提供了动力。
In this paper, binding energy spectra and orbital momentum distributions of the four most stable conformers of Proline are investigated.
本文主要讨论了脯氨酸分子最稳定的四种构象的束缚能谱和轨道电子动量分布。
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