1) bottom air column charge

底部空气柱
1.
On the basis of the experimental results, some preliminary researches on the action mechanism of bottom air column charge have been carried out.
以槽腔体积、槽腔深度和爆破块度为指标 ,对底部空气柱装药和常规装药掏槽爆破进行了模拟试验。
2) bottom air column effect

底部空气柱效应
3) action mechanism of bottom air column charge

底部空气柱作用机理
1.
On the basis of the experimental results, some preliminary researches on the action mechanism of bottom air column charge have been carried out.
根据试验结果 ,对底部空气柱作用机理进行了初步探
4) BB Pellet

底部排气药柱
1.
Characteristic Researching for Pyrotechnic Composition BB Pellet

烟火剂型底部排气药柱特性研究
5) bottom drill string

底部钻柱
1.
Experimental research on motion behavior of bottom drill string in straight hole;

直井底部钻柱运动状态的实验研究
2.
A straight beam strain gauge sensor and a virtual instrument-based dynamic force wireless measurement device of simulated drill strings were developed to study the near-bit bottom drill string dynamics in measurement while drilling.
为研究随钻测井时底部钻柱近钻头处的动力学特性,设计了直梁应变片式测力传感器,研制了一种基于虚拟仪器平台的模拟钻柱动态力无线测量装置,阐述了其测量原理与系统结构,实现了模拟钻柱旋转过程中轴向力、径向力和扭矩的多线程检测及侧向力求解,并进行了不同钻压和井斜角条件下底部钻柱组合的动态力学特性实验,研究了侧向力的变化规律。
6) stem foot

艏柱底部
补充资料:天柱山天柱峰

天柱山天柱峰
天柱峰又称为皖伯尖,万山尖。《道书》称为司命真人发祥所都,海拔1488.4米,孤立晴宵,顶天立地,石骨嶙峋,峭立如柱。五指、莲花、天池、含珠、飞来、月华诸峰拱卫左右,奇松、怪石、云海、佛光、各领风骚。李白《江上望皖公山》诗云:“奇峰出奇云,秀水含秀气。”白居易《题天柱峰》诗云:“天柱一峰擎日月,洞门千仞锁云雷。”
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