根据泥浆浮力及张力的作用原理,通过实验得出量锤配重与泥浆浓度的关系,以确定量锤配重在不同泥浆浓度下的影响情况,达到工前预估配重的目的.%According to the action principle of mud buoyancy and tension,the relationship between the weight of the hammer and the mud concentration is obtained through the experiment to determine the influence of the weight of the hammer at different mud concentration,to achieve the purpose of counterweight before construction.
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机译：在饲料高粱中对spodoptera frugiperda的化学防治喷雾量和喷雾喷雾效果对于草地早熟禾（spodoptera frugiperda na cultura do sorgo forrageiro）的喷雾量和喷雾喷嘴对饲料高粱（spodoptera frugiperda）的化学防治效果的影响
