beta ray gauge射线测量计
beta thickness gauge射线测厚仪
multiple beta gauge多腔;多源贝他规;多重的
beta radiation thickness gauge射线测厚仪
beta-absorption gauge贝他吸收规
back scatter beta gauge反射型β射线测厚计;反射型
beta ray thickness gauge射线测厚规
beta-ray thickness gauge射线测厚仪
gauge beta thickness贝他厚度计