求翻译：通过一组平板镜来取代槽式系统抛物面型的曲面镜聚焦，调整控制平面镜的倾斜角度，将阳光反射到集热管中，为简化系统，一般采用水或水蒸气作为吸热介质。成本相对低廉，但效率也相应降低。是什么意思？

Through a set of flat mirrors to replace the parabolic trough system of curved mirrors focus, adjust the tilt angle of the control plane mirror, reflect sunlight into the tube, in order to simplify the system, generally use water or steam as the heat-absorbing medium. Relatively low cost, but effici

Through a group to replace flat mirror-trough-type system in transition, and focus on the curved surface mirrors adjust control plane mirror reflections of sunlight, tilting angle to collect heat pipes, in order to simplify system, generally in water or water vapor as a heat absorption medium. relat

Substitutes for the trough type system paraboloid through a group of plate mirror tune mirror focusing, the adjustment controls the plane mirror the angle of tilt, reflects the sunlight to the collection heat pipe in, is the simplification system, picks the water used or the steam generally takes th

Through a set of flat mirrors to replace the parabolic trough system-surface mirrors focus, adjust the control plane mirror tilt angle, to reflect sunlight in a tube, to simplify the system, generally used as heat medium water or steam. Relatively low cost, but efficiency is correspondingly reduced.

Through a set of flat mirrors to replace the parabolic trough system of curved mirrors focus, adjust the tilt angle of the control plane mirror, reflect sunlight into the tube, in order to simplify the system, generally use water or steam as the heat-absorbing medium. Relatively low cost, but effici