First, choose the most economical bait in different seasons, regions, varieties and prices. Due to the time, fish, shrimp, snails, scorpions, animal wastes, frozen products, premixes, and compound feeds are selected.
The second is to match the bait according to the requirements of the growth of soft-shelled turtles. For example, to ensure sufficient high-quality bait during the pup stage, the proportion of feed mix can be adjusted appropriately. When the price of fresh materials is low, it is mainly fresh, and others are supplemented and flexible.
The third is homemade feed. Small farmers (fields) should purchase simple equipment such as mixers according to the actual situation, process the bait, and mix with small fish, shrimp, insects, snails and animal internal organs, with a small amount of premix and vegetables. Can reduce costs and improve efficiency.
The fourth is to save bait. There are two methods: First, set up the feeding table, put the wooden board in the water, and then place bricks or other heavy objects on the wooden board to make the board sink in the water. The water depth above the wooden board is 2-5 cm, and the feed is placed. On the wooden board. The second is to try to catch small fish, small shrimps and fish species with low commercial value in the turtle pond to avoid eating the turtle feed by fish with low commercial value.
A corner reflector is a retroreflector consisting of three mutually perpendicular, intersecting flat surfaces, which reflects waves back directly towards the source, but translated. The three intersecting surfaces often have square shapes. Radar corner reflectors made of metal are used to reflect radio waves from radar sets.
N-BK7 Corner Cube Reflectors are made from precision N-BK7 for use in a variety of visible light applications.
Corner cube retroreflectors are designed to reflect any ray or beam
entering the prism face, regardless of the orientation of the prism,
back onto itself. A mirror will only do that at the normal angle of
incidence. As a result, corner cube retroreflectors are ideal where
precision alignment is difficult or time-consuming. They feature three
total internal reflections and will function even at very large angles
of incidence.
| Material | BK7 Optical Glass |
| Diameter | 5mm 12.7mm 25.4mm 38.1mm |
| Height | 5mm 10mm 29.2mm |
| Surface Quality | 60/40 |
| Surface Flatness | Lambda/10 |
| Bevel | Protective Bevel |
| Angle Tolerance | 8' |
| Coating | uncoated or silver coating upon request |
| Ray Deviation (°) | 180 |
Corner Cube Reflectors,Corner Cube Prisms,Corner Cube Retro Reflector,Corner Cube Prism Reflector, corner cube reflector prism
Changchun Ruiqi Optoelectronics Co.,Ltd , https://www.ruiqi-optics.com