This aerated concrete compositeblock is applying for patents.
本加气混凝土复合砌块正在申请国家专利。
2
Based on the formation lithology characteristics, the PDC bit was optimized from such aspects as the compositeblock, blade geometry, cutter model, and cutter mechanics balance, etc.
针对山前构造的地层岩性特征，从复合片、刀翼形状、齿型、切削齿力平衡等方面设计和改进了PD C钻头。
3
In Listing 6, I create a composite code block that composes two functions.