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An important fundamental principle of blast design is explosive distribution. This is normally achieved by hole placement爆破设计的一个重要的基本原理是炸药分布。这一原理一般是通过炮孔布置来实现的
compared with last year, the yield of wheat increased by 10% this year今年的小麦产量比去年增长百分之十
The extreme sensitivity to moisture content and insensitiveness to the basic rock texture and breakage characteristics suggests that only quite broadly representative values are likely to be generated by this estimation approach对水分的极端敏感和对基本的岩石结构及其破碎特性钝感表明、这种评估方法只可找到有广泛代表性的值
The extreme sensitivity to moisture content and insensitivity to the basic rock texture and breakage characteristics suggests that only quite broadly representative values are likely to be generated by this estimation approach对水分的极端敏感和对基本的岩石结构及其破碎特性钝感表明、这种评估方法只可找到有广泛代表性的值
The shortage of this blasting project is supplied by that mining company这个爆破工程项目的缺额是由那个矿山公司提供的
This approach to the derivation of rock factors has been used by many field operators in a wide range of blasting and fragmentation studies and has been shown to lead to a reasonable estimate of the required blasting intensity and the resulting mean passing size in a wide range of blasting environments很多实地操作人员把这种求导岩石系数的方法广泛应用于爆破剂破岩研究之中、并证明应用这种方法可以合理地估算所需的爆破强度以及诸多爆破环境下岩石的最终平均过筛粒度
This material is recognized as being likely to become airborne and farm an aerosol хим. and considered to be capable of being inhaled by humans, penetrating the gas exchange region of the lungs人们注意到、这种物质很可能悬浮在空中、称为悬浮微粒。并认为这种物质可由人呼进肺腑、穿透肺部的气体交换区
This material remains available to be released to the atmosphere whenever the muckpile is disturbed by excavation, transport or subsequent handling一旦爆堆受到开挖、'运输或后续处理时扰动、这种物质就随时会释放到大气之中
This new employee has gained much experience in engineering blasting by leaps and bounds这个新职员很快积累了不少工程爆破的经验
This piece of cloth feels softer and is brighter by comparison这块布手感比较柔和,颜色也鲜亮些