According to the optimization design, a new type of PDC bit was produced and got better result when it was used in the multi-interbedded formation.
根据该设计制造的一种新型复合式PDC钻头在多夹层地层中取得了较好的应用效果。
After studied predecessors' method of suppressing reverberation, a new processing method, which is fit to actual production, is proposed in this paper and got better result in actual data processing.
在研究了前人关于双检波器压制海上鸣震方法的基础上,提出了适合于实际生产的处理方法,取得了较好的效果。
The reason for longitudinal-crack steel leak is analyzed, some measures formed, better result got.
对板坯连铸机产生的纵裂漏钢原因进行了分析,通过制订改进措施,取得了较好的效果。
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