km

I could then space them out to one every 10.35 km.

然后每10.35千米分隔一下

Two hundred seventyish km... It's gonna be tight.

270多千米...很紧张

Fuel range is 300 km, and that's on optimal conditions.

燃油可续航三百千米 而且是在理想条件下

They have a heat signature, and they're moving at 20 km/h.

可以监测到他们的热信号 时速二十公里 正在移动

They have a heat signature and they're moving at 20 km/h.

可以检测到他们的热信号 时速20公里 正在移动

Now, I fill up with water 56 km up river.

我现在都去河流上游五六公里的地方取水

Strikes me I'm being a bit of a mug because I'm thrashing this boat, but it only does 23 km/h, about 11.5 knots, and I'm trying to catch up with people I don't even want to be with anyway.

我觉得之前努力开快船这件事有点蠢 毕竟这船只能开23公里每小时 大概11.5节 而我在试图追两个我反正也不想跟他们在一起的人

The red colours, let's say 500 km, where a satellite normally flies, indicate high density, and every time we turn the heater on, we see that the density is increasing.

这些红* 大概500千米 卫星的正常飞行轨道 显示高密度 每次我们把加热器打开 我们都能看到密度的上升

Acoustic waves originating at one of these two locations will propagate down up to a depth of 60,000 km and they will return back to the surface close to the location of this point.

这两处基点之一 所产生的声波 会传播到太阳表面之下六万千米处 然后再返回太阳表面 到达另一点附近