查询词典 air drill

The drill rigs are a kind of fast drilling equipment which is rotated by an air motor, pushed by one or two air cylinders and the low or middle air pressure DHD hammer could be used.

演练钻机是一种快速钻井设备是由一个旋转的空气马达，推由一个或两个空气气罐及低或中等空气压力dhd锤，可用于。

In order to ensure the integrity of rock carvings, the construction team had to take the original Canadian mechanized off hilltops Act, in the grotto of the left foot attached to the thickness of the rock, the rock drilling machine with internal combustion engines, compressed air rock drill holes in the parent rocks on the hit row, and then by hand drill rod of the ways to split the rock.

为了保证雕刻岩体的完整性，施工队不得不采取原始加机械化的劈山法，在留足石窟所依附的岩体厚度后，用内燃机凿岩机、压缩空气凿岩机在母岩上打排孔，然后用人工打钢钎的方法把岩石劈开。

KQG-150 Series High Air Pressure DTH Drill Rigs is a high efficient equipment to drill blastholes in open-pit mining and all kind of engineering projects.

kqg - 150系列高气压潜孔钻钻机是一种高效的设备，以炮孔钻在露天采矿和所有种的工程项目。

Yesterday morning, the first of Haicang District of air defense large emergency drill 15 emergency detachment of 200 people attended the 60-minute drill.

昨日上午，海沧区首次举行防空袭大型应急演练，15支应急分队200多人参加了60分钟的演练。

The fracture analysis includes the macro-fractography and micro-fractography, the experimental analysis of the chemical components, the mechanical properties, and the metallography of drill pipes, and the stress conditions analysis of drill pipes in air drilling.

失效分析内容主要包括断口宏观分析和微观分析，钻杆材料化学成分、力学性能和金相组织试验分析，钻杆在空气钻井过程中受力条件分析等。

Water-cooled Screw series of hand-held air leg rock drill series-type rock drill boring Loader Series drilled more than 300 varieties, such as excavators.

水冷式螺杆系列手持式凿岩机系列气腿式凿岩机系列开凿装载机开凿挖掘机等三百多个品种。

Oil-less air compressors are mainly used in areas of medical treatment (oxygen-making equipments, oxygen-chambers, respirators, nebulizers, air-operated dental drill, cleaning equipments), cosmetology equipments, air-powered equipments (car doors, air cushion, air suspension, pressurization), sewage disposal, liquid filling machines, spinning and weaving, and printing.

猜猜系列无油空气压缩机广泛应用于医用制氧设备，医用氧舱，医用呼吸机，医用雾化器，气动牙钻，清洁护理机，美容美体机，汽车气动门，气垫、气悬浮，气动工具，污水处理，饮料灌装，气动加压，印刷机械，纺织机械等。

It is considered that fatigue crack is early produced on drill pipes, because the vibration load of drilling tools in air drilling is more severe than that in mud drilling. Fatigue cracks easily occur under alternating vibration. Because the current wellhead detecting instruments can not be used to reflect the change of pump pressure produced after drill pipe piercement timely and accurately, effective measures can not be taken in time to prevent the expansion of fatigue cracks. As a result, drill pipe fracture accidents occur.

失效分析表明，钻杆属于早期疲劳断裂，断裂主要原因是在空气钻井过程中钻具受到的震动载荷远大于钻井液钻井过程中的震动载荷，在交变的震动载荷作用下，钻具容易产生疲劳裂纹；由于现有的井口检测仪表不能精确及时反映钻杆刺穿之后产生的泵压变化，无法及时采取预防措施，疲劳裂纹不断扩展，最终导致了钻杆断裂失效。

It is considered that fatigue crack is early produced on drill pipes, because the vibration load of drilling tools in air drilling is more severe than in mud drilling. Fatigue cracks easily occur under alternating vibration. Because the current wellhead detecting instruments can not be used to reflect the change of pump pressure produced after drill pipe piercement timely and accurately, effective measures can not be taken in time to prevent the expansion of fatigue cracks. As a result, drill pipe fracture accidents occur.

失效分析表明，钻杆属于早期疲劳断裂，断裂主要原因是在空气钻井过程中钻具受到的震动载荷远大于钻井液钻井过程中的震动载荷，在交变的震动载荷作用下，钻具容易产生疲劳裂纹；由于现有的井口检测仪表不能精确及时反映钻杆刺穿之后产生的泵压变化，无法及时采取预防措施，疲劳裂纹不断扩展，最终导致了钻杆断裂失效。

The device includes a drill spigot inserting into the marebase sand layer through the upper cover soil layer, there sets air inlet, sand discharging pipe and vibration connecting pipe in the drill spigot; there sets a sand absorption head on the bottom of the air inlet and sand discharging pipe; the bottom of the vibration connecting pipe connects with the vibration head; the sand absorption head is made up of a centre cavity, ring cavity and sand absorption pipe.

该装置包括一穿透上部覆盖土层插入到海底深埋砂土层的钻孔套管，在钻孔套管内，设有进气管、排砂管和振动连接管；进气管和排砂管的下端连接一个吸砂头；振动连接管的下端连接振动头；吸砂头由一中心腔室、环状腔体和吸砂管构成。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。