1.This engulfment is the sepulchre which assumes a tide, and which mounts from the depths of the earth towards a living man.
陷入流沙，也就是坟墓变成海潮，并从地下升到一个活人跟前。
2.The jet fluctuation was mainly caused by the big arc distributaries and the engulfment.
射流脉动主要是由于电弧大尺寸分流和卷吸作用造成的。