查询词典 practice drill

Drill cement with seawater and then displace the new mud into the hole as drill ing out of the casing shoe.

用海水钻水泥塞，钻到套管鞋时替入泥浆。

Data tables include screw thread, drill chart, center drill, and hardness conversion.

数据表包括螺旋线状，程序图表，中心程序和难度转换。

Features contain information and rules describing conditions, such as how and where material removal should occur, cutting depths, whether to use climb cutting or not, whether to spot drill or center drill, and preferred machining strategies for roughing and finishing.

加工特征包含了加工条件信息和规则，例如在何处和如何移除材料；切削深度；是否采用同向铣削；采用锪孔钻还是中心孔钻；以及优选的粗糙度和表面处理加工策略。

This design introduced the bulldozer with the edge board in the machining center the drill hole jig design and the simulation elaborated the bulldozer with the edge board in the machining center the drill hole jig design is mainly designs jig's positioning device the clamp and the jig body's structure according to the edge board structure shape selects jig various components according to the edge board's material the material carries on the intensity examination has realized jig's in processing localization and the clamp function.

本设计介绍了推土机用刃板在加工中心上钻孔的夹具设计与仿真，阐述了推土机用刃板在加工中心上钻孔的夹具设计，主要是根据刃板的结构形状来设计夹具的定位装置、夹紧装置和夹具体的结构，根据刃板的材料来选用夹具各零件的材料，进行强度校核，实现了夹具在加工中的定位和夹紧作用。

Drill a hole in the center of the handrail and drill a hole in the bottom of the handrail as an access hole for tightening the bolt on the rail bolt kit.

打眼在主席台扶手、打眼在底部扶手作为获取螺栓孔收紧对铁螺栓套。

The main products are Hexagon Hollow Steel, Tapered Drill Rod, Integral Drill Rod, Chisel Bit, Cross Bit, X Type Bit, Button Bit, DTH Bit, DHT Hammer, Coupling Sleeves, Shank Adaptor, Furnace Tap Drilling Tools, Drilling Machine etc.. Meanwhile, we also cooperate with other manufactories in China and supply the good quality of products. Of course, we also try our best to introduce overseas rock drilling machinery and tools into China market.

我公司以三占集团这样大型的专业凿岩钎具制造商为后盾，向世界各地销售中国生产的优质凿岩机具，如中空钢、锥型连接钎杆、重型钎、各种钻头、钎尾、高炉开口钎具、风镐、凿岩机等，同时为中国市场引进国外的优质凿岩机具及生产技术。

Vertically drill with Φ12mm churn drill at certain position, set antenna support at drilled position, fix the antenna support foundation with steel expansion screw.

在已确定的安装位置，用Φ12mm 的冲击钻垂直钻孔，将天线架摆在已钻孔的位置，用钢制膨胀螺钉紧固天线架底座。

Our factory always takes the logos of people foremost and customer-oriented, advocate principia of environmental protection, honor, elegance and concordant, use German and Italy advanced producing equipment, such as hot-press, cold-press, edge bonding machine after forming, wood skin sewing machine, many line drill, single line drill, Imitating model lathe, shaking sanding machine, solid milling machine, guiding way wood saw, all sides planer, pushing platform saw, polishing and shining machine, automatic overlay flow production line, painting sprinkling systems, corium sofa and office chair producing equipment ETC.

工厂一贯秉乘以人为本，以客为尊的理念，崇尚环保。尊贵。高雅。和谐的原则，采用德国及意大利先进的生产设备，如热压机、冷压机、后成型封边机、木皮缝合机、多排钻、单排钻、仿型车床、震动式砂光机、立铣机、导向开料锯、四面刨床、推台锯、打磨抛光机、全自动贴面流水生产线、油漆喷淋系统以及真皮沙发、办公椅生产设备等。

Study is aimed at box threads of Φ177.8mm drill collar to analyze and calculate drill collar box thread with different stress-relief grooves using finite element method, the stress concentration of thread end of 3 types of box threads is gained under same boundary condition and load.

以177.8mm钻铤母螺纹接头作为研究对象，用有限元方法对加工有不同应力减轻槽的钻铤母螺纹接头进行了分析计算，得出了3种不同母螺纹结构在相同边界条件和载荷作用下螺纹消失端的应力集中情况。

Prepared by Tom Sheeran Drill string Drill bit The hoisting equipment consists of: a crown block, a traveling block, drilling line, and a drawworks to pull the drilling line up or down.

Prepared by Tom Sheeran 钻柱钻头起重设备由以下部分组成：天车，游动滑车，游动钢丝绳，和一个用来起降游动钢丝绳的绞车。

This matter overthrew all basises I learned from Sunday school .

这件事把我从周日学校学到的所有道理都颠覆了。

It's one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

这是一个老化的残酷讽刺：如果你想记住你最喜欢的餐馆，你应该更少吃到它们。