For measuring abrasion of catalyst particles, three basic attrition test apparatus are used . 为了测定催化剂颗粒的磨损,可使用三种基本磨损测试装置。
The overall industry has not, to date, standardized on any particular test apparatus design for any of the three type tests . 到现在为止,整个催化剂工业关于这三种测试装置都还没有标准化。
Calibrating methods of rock treaxial testing apparatus 岩石三轴试验仪校验方法
Glasswares for testing apparatus of petroleum products 石油产品测试仪器用玻璃器皿
Determination of mooney viscosity of rubber ; test apparatus 橡胶的莫氏粘度测定.第2部分:试验仪器