Testing Large Turbines, Westinghouse Co. Works
គ្រោង
On the left of the screen, a small group of men lift the top off of what appears to be a t…
| ភាសាដើម | EN |
|---|
On the left of the screen, a small group of men lift the top off of what appears to be a t…
| ភាសាដើម | EN |
|---|