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- It is summarized and analyzed the strength characteristic of andesite and the principium of destroying rock of roller bit,take andesite for example. 以安山岩为例,总结和分析了安山岩的强度特性以及组合牙轮钻头的破岩机理。
- The operating performance quality of the roller bit, which is the most main broken crag tool, directly influence the well drilling quality, well drilling efficiency and well drilling cost. 牙轮钻头是钻井工程中最主要的破岩工具，其工作性能的好坏直接影响钻井质量、钻井效率和钻井成本。
- Study of Single Spherical Roller Bit 单牙轮钻头研究
- STUDY ON BELLEVILLE RING SEAL OF ROLLER BIT 牙轮钻头碟形圈密封的试验研究
- Keywords drillability;logging data;roller bit; 可钻性;测井资料;牙轮钻头;
- He bit off a large piece of the apple. 他咬下一大块苹果。
- She was a bit queer after her husband deserted her. 她遭丈夫遗弃後精神有点失常。
- Sealing mechanism of metal face seals for roller bit 牙轮钻头单金属浮动密封结构的密封机理
- Study on Roller Bit Rock-Breaking Power in Vertical Wells 直井牙轮钻头碎岩功率研究
- I reckon the girl is a little bit boyish. 这想这个女孩有点男孩子气。
- Laboratorial Research on Roller Bit Colliding with Borehole Wall 牙轮钻头与井壁碰撞的室内实验研究
- The seedling have shrivel up a bit in the hot sun. 在炎热的太阳光下，幼苗已有一点乾枯。
- Modification of Flat Base Roller Bit with Cone and Its Application 平底改锥体滚刀钻头及应用效果
- The ride on the roller coaster dizzied us. 乘坐云霄飞车使我们头晕。
- A bit of embrocation will soothe your bruised knee. 用一点搽剂可使你那青肿的膝部消肿。
- May I borrow your roller skates? 我可以借你的旱冰鞋吗？
- The love scenes in the play were a bit overdone. 剧中的情爱场面演得有点过火了。
- Clattering along on roller skates. 踩着轮式溜冰鞋行进
- I'm a little bit tired. Let's take a short rest. 我有点累了。让我们休息一会儿。
- Setting up this business was a bit of a gamble. 开办这样的公司有点冒险。
