a narrow passage providing the only means of access to a certain place;pass;[工] duct;drill way ;

Repeat with a four channel tape and the number of patterns goes up to sixteen.
若用四条孔道带,孔型数就会增加到16种.
来源:词典精选例句In has been verified by tracer test that there are channels in some reservoirs.
示踪剂试验证实了地层大孔道的存在.
来源:互联网摘选During the construction of prestressed cable tower of the second bridge on Yangtze River in Nanjing.
南京长江二桥预应力索塔施工中,预应力孔道灌浆采用真空辅助压浆新技术.
来源:互联网摘选There is a hole in thethe air from the upper chamber enters the lower one.
腔筒中心有一孔道,压缩空气就是由此从上气室进入下气室的.
来源:互联网摘选THY temporary plugging agent used for workover treatment adopts oil soluble resin as bridging agent.
THY修井暂堵剂是以油溶性树脂作为桥堵剂,桥堵储层孔道,在井壁形成屏敝层,从而减少修井液的漏失.
来源:互联网摘选Water displacement recovery of model with large inscribed circle radii is improved.
孔喉半径较大的模型,水驱最终采收率较好,孔道半径越长,水驱油效果越好.
来源:互联网摘选高渗透 、 大孔道、裂缝性地层堵水剂的研制与应用.
来源:互联网摘选Layer silicates have excellent adsorptive performance because there are structural channels in it.
在层状硅酸盐矿物中存在结构孔道,这使它具有良好的吸附性.
来源:互联网摘选冷中子孔道方管采用铝合金材料焊接而成,其作用是从冷中子源引出中子.
来源:互联网摘选Connection between the circuit components of the internal pore formed by the chip.
元件之间的连接油路由集成块内部孔道形成.
来源:互联网摘选These tunnels also serve to help the air move more easily through the soil.
这些孔道也有助于空气轻易地透进泥土里面.
来源:互联网摘选
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