Main parts such as crownblock, mast, substructure, rotary table and travelling system of drilling rig meet API standard.
钻机天车、井架、底座、转盘及游动系统等主要配套件符合API规范。
This standard specifies the technical requirements special regulations on the inspection lifting and laying down of self-erection mast of land rig.
本标准规定了陆地钻机自升式井架起放作业的检查、起升和下放技术要求及特殊规定。
Methods The content of total flavonoid in Physalis alkekengi L. var. franchetii(Mast. )Makino was determined using colorimetric with rutin as a standard product.
方法以芦丁为对照品，采用分光光度法测定酸浆不同药用部位中总黄酮的含量。
Methods The content of total flavonoid in Physalis alkekengi L. var. franchetii(Mast. )Makino was determined using colorimetric with rutin as a standard product.
方法以芦丁为对照品，采用分光光度法测定酸浆不同药用部位中总黄酮的含量。
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