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Class B: liquid mineral exploration. 乙级：液体矿产勘查。
Class B: remote sensing geology exploration. 乙级：遥感地质勘查。
Class B: rock ore appraisal and rock ore testing. 68810912乙级：岩矿鉴定与岩矿测试。
Class B: solid mineral exploration. 乙级：固体矿产勘查。
Class B: rock ore appraisal and testing. 乙级：岩矿鉴定与岩矿测试。
His daughter was classed in Class B. 他的女儿被编入乙班。
Describes the drawbacks of the Russian-built500 MW Generator set auxilliary Power and the good results obtained through technical upgrading. 阐述了伊敏发电厂俄产500mw机组厂用电系统部分不完善、合理的问题，并进行了技术改造，取得良好效果。
Class B: areal geology survey; remote sensing geology exploration. 2901524乙级：区域地质调查；遥感地质勘查。
Class B: areal geology survey; solid mineral exploration. 3855229乙级：区域地质调查；固体矿产勘查。
Class B: geophysical exploration; rock ore appraisal and testing. 乙级：地球物理勘查；岩矿鉴定与岩矿测试。
Class B: areal geology survey; gas mineral exploration. 乙级：区域地质调查；气体矿产勘查。
In Britain, for instance, Ritalin is a class B drug. 比如，在英国，Ritalin是B级药。
Class B: solid mineral exploration; geophysical exploration. 乙级：固体矿产勘查；地球物理勘查。
Class B: geophysical exploration; mineral smelting and processing. 乙级：地球物理勘查；选冶加工试验。
Replaces the PWB, PWC and PWD ovens for class B applications. 质量把关到技术创新均保证了加工过程的质量监控及可靠性。
Class C's emptiness recognized, Class B dwindles in its interest. 等级C的无意义是众所周知的，等级B正在缩减它自身的重要性。
Class B: areal geology survey; hydrogeology survey; liquid mineral exploration. 乙级：区域地质调查；水工环地质调查；液体矿产勘查。
Class B: areal geology survey; hydrogeology survey; engineering geology survey; environment geology survey. 乙级：区域地质调查；水文地质调查；工程地质调查；环境地质调查。
Class B: areal geology survey; geophysical exploration; rock ore appraisal and testing. 乙级：区域地质调查；地球物理勘查；岩矿鉴定与岩矿测试。
Class B: hydrogeology survey; engineering geology survey; environment geology survey. 乙级：水文地质调查；工程地质调查；环境地质调查。