Abstract: A continuous micro-dose administration apparatus includes a needle apparatus, a drug storage apparatus, a piston push rod apparatus, a force accumulating apparatus, an accumulated force release apparatus, and a control apparatus. Under the action of the control apparatus, the accumulated force release apparatus releases a specified piston stroke, the force accumulating apparatus pushes the piston push rod apparatus to move into the drug storage apparatus by the specified piston stroke, and drug liquid in the drug storage apparatus is discharged through the needle apparatus. With the force accumulating apparatus as a power source, the piston body is pushed by means of rotation or direct pushing, a required number of pulses is calculated according to a dose to be infused or a distance moved by the piston, and the control apparatus accurately controls the accumulated force release apparatus to release the specified piston stroke, thereby improving the dose administration accuracy.

Abstract: Disclosed is a recycling purification and reuse system for farmland tail water, which includes a water collecting pool, a water purifying pool and a clean water pool; the water purifying pool is correspondingly arranged with the clean water pool; the water collecting pool is located above the side of the water purifying pool far away from the clean water pool; one side of the water collecting pool close to the water purifying pool is provided with an opening; the opening is provided with a filtering mechanism; the filtering mechanism is correspondingly arranged with the water purifying pool; a water pumping mechanism is arranged in the water purifying pool; and the water outlet end of the pumping mechanism is correspondingly arranged with the clean water pool.