double-u的例句大全

at 1 mile from a 1-megaton explosion, for example, the duration of the positive phase of the blast wave is about 2 seconds.

例如在离一枚一百万吨爆炸一哩的地方，爆震波的正延续时间约为2秒。4.Mining of No Beforehand to Dig the Roadway of the Dip Long-wall Megaton's Double-Unit Faces无预掘巷道倾斜长壁对拉百万吨工作面的开采