mud ball

Combined with other correlated technologies , the adhesive of PF-FNJ was employed to prevent cuttings aggregation forming mud ball which encountered frequently in early development .

防粘结剂PF-FNJ及其相关技术应用解决了前期开发中岩屑聚集成泥球的现象；

Before the existence of the Taoist concept that the mud ball in the brain governs mentality , the TCM concept that the brain governs mental activity had already appeared in an embryonic form .

中医学脑主神明观在道家、道教泥丸主元神观念形成之前就已经有其雏形，而它被发扬光大则是近到受西医解剖学影响的结果；

To protect drilling normally drillers adopted mud ball plugging fill in plugging rapid hardening cement partial seal off 191 # resiniferous cement plugging and high-pressured cement grouting successively .

为保证正常钻进，先后采用了制球堵漏、镶嵌堵漏、快干水泥局部封堵、191树脂水泥封堵和水泥高压注浆封堵。

The results showed that the red mud porous ceramic filtration ball coated TiO_2 thin film and heat-treated at 500 ℃ for 1 h had excellent photocatalytic activity and coalesces well with red mud porous ceramic filtration ball matrix .

结果表明，经500℃、1h热处理后的涂覆TiO2薄膜的赤泥质多孔陶瓷滤球具有良好的光催化性能，且膜与赤泥质多孔陶瓷滤球基体结合牢固。

The TiO_2 film was coated on red mud porous ceramic filtering ball by sol-gel process in this research . The compositions and the microstructure of the specimens were tested by advanced testing methods such as TG-DTA , XRD and SEM .

利用溶胶-凝胶法在赤泥质多孔陶瓷滤球表面涂覆TiO2薄膜，采用TG-DTA、XRD、SEM等现代测试技术测试了样品的成分及微观结构；