For grating in the optical pick-up head, the compensability between the longitudinal and transverse error practical references on the manufacture of grating. 对光学头分束光栅,其纵向加工误差与横向加工误差间存在的互补性,对光栅的具体制作有着实际的参考价值。
It is shown that test aerospike nozzle has good altitude compensability of thrust. 实验表明,塞式喷管具有良好的高度补偿能力和较高的效率。