二维样品样品相关技术
2D sample-sample correlation spectroscopy
包装图样要求
Specification for packaging drawing
标样-样品交叉法
Standard-sample-bracketing
BOD5考核样品
standard specimen of BOD5
n型标准锗样品
n-type Ge standard sample
X-射线衍射样品倾斜扫描模式
sample-tilting X-ray diffractometry