equivalent standard axle conversion
data conversion standard
design of standard axle load
equivalent standard axle load ESAL
standard conversion rate
standard standard of vo|
95th standard project standard
adoption of international standard and advanced oversea standard
QUALITY STANDARD(OEKO-TEX STANDARD 100\ISO9002\SGS\ITS\AATCC\M&S)
shortened rail；standard shortened rail；fabricated short rail used on curves；standard curtailed rail
Standard addition method and internal standard method
Standard and non-standard TV systems
standard of aroma type and standard sample
axle journal(axle-neck)
rigid axle (station-ary fixed axle)
conversion conefficient [= conversion factor]