According to practical working situation, nonlinear dynamic finite element method is adopted to establish a numerical model of combined breaking rock with high pressure water jet and mechanical bit.
采用非线性动态有限元法，结合实际工况条件，建立了高压水射流—机械齿联合破岩的数值模型。
The rates of cases about robbery by"motorcycle"are high and rates of breaking cases are low. It brings greater pressure to the investigation organs.
“飞车”抢夺案件发案率高，破案率低，给侦查机关带来了较大压力，并将在较长时期内成为我国刑事犯罪活动中的一个突出的犯罪问题。
By using the high-pressure pulse electric field, the method has less heat energy in the process of breaking, low raised temperature of a breaking target, and short breaking time.
利用高压脉冲电场破壁，在破壁过程中产热少、破壁对象升温小、破壁时间短。
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