Some coal dust caught fire underground.

一些煤尘在地下着火了。

These men were known as the “black gang” because of the soot and coal dust they were covered in.

这些人被称为“black gang”，因为他们身上满是烟尘和煤灰。

In the rugged south of Shanxi province, the water in the mountain streams was now black with coal dust and undrinkable.

晋南山区的溪流而今已被煤尘染成黑色，无法饮用。

It was invented to run on a variety of fuels including coal dust and vegetable oils.

它的发明是为了使用多种燃料运行，包括煤尘和植物油。

The Vortex Gun would work by shooting  a shell filled with a slow-burning explosive and coal dust.

涡旋枪的工作原理是发射一个装满缓慢燃烧的炸药和煤尘的炮弹。

We wondered who was sprinkling burning coal dust upon the floor, for we saw drops of red twinkling on the stones around us.

我们想知道是谁在把燃烧的煤灰洒在地板上， 因为我们看到周围的石头上闪烁着红色的水滴。

By the time they got home, Georgie was covered coal dust from elbow to ears, and there was only one chunk of coal left.

当他们回到家时， 乔吉从肘部到耳朵都沾满了煤尘，只剩下一块煤了。

He opened a huge dusty book and drew it to him and dipped a foul pen into an inkwell filled with what looked like coal dust.

他打开一本布满灰尘的大书，把它拉到面前，然后用一支脏兮兮的钢笔蘸了蘸墨水，墨水池里装满了看起来像煤灰的东西。

His eyes were blue and because he hadn't been able to wash the coal dust off his eyebrows and eyelashes he looked as if he was made up.

他的眼睛是蓝色的， 因为没能洗掉眉毛和睫毛上的煤灰， 他看起来就像化了妆。

In it, they singled out two foremen, saying they repeatedly failed to clean conveyor belts or apply rock dust used to neutralize explosive coal dust, all leading to unsafe conditions.

在其中，他们挑出了两名工头，称他们多次未能清洁传送带或应用用于中和爆炸性煤尘的岩粉，所有这些都导致不安全的情况。