SCA provides composition on two axes: composition by reference and composition by implementation.
SCA在两个坐标轴上提供组合：引用组合与实现组合。
2
An experiment on parallelism specification of optical axes by using airborne laser range-finder sets out a reference for establishing optical configuration for some other airborne laser units.
利用机载激光测距机进行的光轴平行性要求实验，为其它机载激光装置光学方案的制定提供了参考。
3
In view of the uncertainty in the load moment of inertia and the disturbance of test table with three or more axes, a discrete time model reference adaptive control is presented in this paper.