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- Pneumatic hammer drilling technology with low wob,low rate of revolution and high capacity to break rock is one of the best effective methods to solve the problems of hard rock drilling. 空氣錘鉆井是一種低鉆壓、低轉速、高沖擊破巖回轉鉆進(jìn)技術(shù),它兼容了氣體鉆井和沖擊回轉鉆井的優(yōu)勢,其機械鉆速一般比回轉鉆井高,是當今解決硬巖鉆井難題的一種有效方法。
- Inserted diamond bit applied to hard rock drilling in Xinji Mining Area 孕鑲金剛石鉆頭在新集礦區堅硬巖層鉆進(jìn)中的應用
- Lately they have been getting into hard rock. 近來(lái)他們一直熱衷于演奏硬派搖滾。
- Application of Rotary Rig in Hard Rock Drilling for Foundation Project of One Power Station 旋挖鉆機在某電廠(chǎng)樁基工程硬巖地層中的應用
- The Application of the Hard Rock Drilling Technique with Large Diameter in Chinese Continental Scientific Drilling Engineering 大口徑硬巖鉆探技術(shù)在中國大陸科學(xué)鉆探工程中的應用
- hard rock drilling technology 硬巖鉆進(jìn)技術(shù)
- Under the crust are many layers of hard rock. 在地殼的下面是許許多多堅硬的巖石層。
- Hard rock is the real cultural revolution. 搖滾是一場(chǎng)真正的文化大革命。
- Features: rock drilling for opencast mining and quarrying field. 適用于露天礦、采石場(chǎng)開(kāi)采，用于高低風(fēng)壓潛孔鉆機。
- Lately they have is get into hard rock. 近來(lái)他們一直熱衷于演奏硬派搖滾。
- Lately they've been getting into hard rock. 近來(lái)他們一直熱衷于演奏硬派搖滾。
- The rock drill is indispensable for digging coal mines. 鑿巖機是煤炭采掘不可缺少的工具。
- Tina: What about hard rock songs? 蒂娜：那么搖滾樂(lè )歌曲呢?
- You ever heard of a hasidic jew into hard rock? |你聽(tīng)說(shuō)過(guò)哈西德派猶太人從事硬搖滾嗎?
- If they knew how difficult it was to drill through the hard rock, they would lose heart. 如果他們知道了鉆透那堅硬的巖石有多么困難,他們會(huì )喪失信心的。
- She made herself as comfortable as the hard rock permitted. 她在堅硬的巖石上盡可能坐得舒服些。
- However, the SEP in diamond rotary drilling was higher than the SEP in percussive drilling in lightly weathered hard as well as in extremely hard rock. 在微風(fēng)化的堅硬與極堅硬巖石中，金剛石旋轉鉆進(jìn)比功則明顯高于沖擊鑿碎比功。
- The boy has been chipping away at that hard rock for four hours. 那小伙子鑿削巖石已經(jīng)四個(gè)小時(shí)了。
- LHS Rock Tools CO.,LTD-Rock tools,Rock drills,Rock drilling ... 遼寧葫蘆島蓮花山鑿巖釬具有限公司（LHS）生產(chǎn)優(yōu)批發(fā)、蓮花山鑿巖.
- In the 1970s, groups played hard rock and punk music, instead. 而到了70年代，樂(lè )隊開(kāi)始演奏重金屬和朋克音樂(lè )。
