阐述了海底取样时岩芯形成的理论过程，推导了有关理论计算公式，得出了形成“桩效应”的条件，并论述了取样器静压力及振动锤多项参数的理论计算公。
Also it presents the condition of forming "stake effection" is reached and the theoretic calculation formulas of hydrostatic pressure and multi parameter of vibratory hammer of the sampler.
并通过计算机辅助分析，为取样门管参数的选取提供了理论依据。
It provided theoretical basis for the choice of gating diode by means of CAD analysis.
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