坚硬岩层的英文

• competent bed
• hard formation
• sharp ground

• "坚硬"英文翻译    hard; solid; stiffness; rigi ...
• "岩层"英文翻译    rock formation; stratum; roc ...
• "硬岩层" 英文翻译 :    shelly formation
• "半坚硬岩石" 英文翻译 :    semi-hard rock
• "坚硬岩石" 英文翻译 :    competent rock; hard rock; sound rock
• "硬岩层钻井" 英文翻译 :    hard-rock drilling
• "中硬岩层" 英文翻译 :    medium ground
• "坚硬岩石地区" 英文翻译 :    hard rock country
• "坚硬灰岩层" 英文翻译 :    hard lime
• "硬岩层中钻进" 英文翻译 :    rough drilling
• "坚硬岩石含水层" 英文翻译 :    hard-rock aquifer
• "坚硬岩石剪切试验" 英文翻译 :    shear test of intact rock
• "较坚硬密实岩层" 英文翻译 :    rather hard&dense formation
• "坚硬岩石井壁取心器" 英文翻译 :    hard rock coring tool; hrct
• "表土下硬岩层的顶部" 英文翻译 :    rock head
• "硬岩" 英文翻译 :    hard rock; hard stone; hardrock
• "坚硬" 英文翻译 :    hard; solid; stiffness; rigidity; flintiness 坚硬的岩石 solid rock; rag; 坚硬度 flintiness
• "岩层" 英文翻译 :    [地] rock formation; stratum; rock stratum
• "岩，硬岩" 英文翻译 :    graywacke
• "硬岩礁" 英文翻译 :    klint
• "硬岩矿" 英文翻译 :    hard-rock mine
• "硬岩盘" 英文翻译 :    hardpan
• "硬岩石" 英文翻译 :    hard rock; hardrock; kingle; metal; rag
• "杂岩，硬岩" 英文翻译 :    graywacke
• "坚硬层" 英文翻译 :    solid bed

• Skin impregnated drillbits are suitable for drilling in the medium - hard rock formation with f 6 - 10
  表镶钻头适用于f 6 - 10机中硬及坚硬岩层的钻进
• Lung lok shui is a unique hard rock ridge found at tung ping chau . from a distance , it resembles a dragon charging into the sea
  龙落水的岩质为燧石粉砂岩，从岛上高脊直奔入海，有如石龙奔海而名，是东平洲唯一及特有的坚硬岩层。
• Ball hob drill head is applicable for harden rock layer , fine grain granite , and it has below 9 - grade drillability . the compressive strength is no more than 15 of pull coefficient
  球齿滚刀钻头适合于坚硬岩层，细晶花岗岩，可钻性9级以上，抗压强度在普氏系数15 。
• Abstract : main construction points of qingfang hospital station on qingdao subway under the condition of hard surrounding rock are described . blasting control and vibration monitoring are stressedly introduced
  文摘:阐述了青岛地下铁道青纺医院车站在坚硬岩层中的施工要点，重点介绍了爆破控制、震动监测等内容，对于城市硬质岩石条件下的地下工程具有借鉴意义。
• By theoretical analysis and actual measurement of field and phenomena analysis of rock burst , the author illustrates the directionless pressure , sudden movement and rupture of hard roof lead to the internal cracks of coal instable development , which easily results in rock burst happening
  摘要通过理论分析、现场实测和冲击矿压现象分析，说明了顶板坚硬岩层产生的静压和突然运动、破断均可使煤体内部裂纹不稳定扩展而容易发生冲击矿压。