Abstract: An array substrate, a liquid crystal display panel and a display apparatus. The array substrate comprises: a substrate (10), a first insulating layer (20), a second insulating layer (30), a third insulating layer (40), a planarization layer (50), a first electrode layer (90A), a fourth insulating layer (70) and a second electrode layer (90B), the third insulating layer comprises a first interlayer insulating layer (40A), a second interlayer insulating layer (40B) and a third interlayer insulating layer (40C), which are sequentially stacked; the first interlayer insulating layer is located on the side of the second interlayer insulating layer close to the substrate (10), the third interlayer insulating layer is located on the side of the second interlayer insulating layer away from the substrate; the material of the first interlayer insulating layer and third interlayer insulating layer comprises silicon oxide, the material of the second interlayer insulating layer comprises silicon nitride.

Abstract: A clamping triaxial seepage and acoustic coupling rock tensile testing machine includes a sample and a scaffold-type tensile testing device. The scaffold-type tensile testing device has an upper chuck and a lower chuck. The upper chuck has an acoustic transmitting channel, one end of which communicating with the outside, and the other end of which having an acoustic transmitting probe. The lower chuck has an acoustic receiving channel, one end of which communicating with the outside, and the other end having acoustic receiving probe. An upper end face of the sample has with a seepage outflow hole while the upper chuck has a seepage outflow channel connected with the seepage outflow hole. A lower end face of the sample has a seepage inflow hole while the lower chuck has a seepage entry channel is connected with the seepage inflow hole.

Abstract: The present patent application provides a wind turbine with variable blade pitch. The wind turbine with variable blade pitch includes a turbine shell coaxially disposed at a turbine axis; and at least three evenly distributed blade handle bases fixedly disposed at the outer circumference of the turbine shell. A blade handle axis is coaxially configured on each blade handle base. A blade is fixedly disposed on each blade handle axis. A centrifugal blade pitch changing unit is disposed on the turbine shell and configured to adjust the rotation speed of the wind turbine. When the rotating speed of the wind turbine exceeds the rated rotating speed, it is regulated by the centrifugal blade pitch changing unit, so as to avoid the rotating speed of the wind turbine to be greatly increased due to the wind speed rise and make the wind turbine run stably at the rated rotating speed.

Abstract: The present patent application provides a wind turbine with variable blade pitch. The wind turbine with variable blade pitch includes a turbine shell coaxially disposed at a turbine axis; and at least three evenly distributed blade handle bases fixedly disposed at the outer circumference of the turbine shell. A blade handle axis is coaxially configured on each blade handle base. A blade is fixedly disposed on each blade handle axis. A centrifugal blade pitch changing unit is disposed on the turbine shell and configured to adjust the rotation speed of the wind turbine. When the rotating speed of the wind turbine exceeds the rated rotating speed, it is regulated by the centrifugal blade pitch changing unit, so as to avoid the rotating speed of the wind turbine to be greatly increased due to the wind speed rise and make the wind turbine run stably at the rated rotating speed.