Abstract: A method for preparing (2S,3R)-p-methylsulfonylphenylserine is provided. In order to solve the existing problem of low conversion rate, provided is a method for preparing (2S,3R)-p-methylsulfonylphenylserine, including carrying out a reaction between p-methylsulfonylbenzaldehyde, L-threonine and pyridoxal phosphate in an oxygen-containing environment under the combined action of transaldolase and acetaldehyde oxidase to obtain a product (2S,3R)-p-methylsulfonylphenylserine. The method can effectively achieve the effect of improving the conversion rate of the reaction and has the advantage of high product yield.

Abstract: An atomizer includes: a liquid storage assembly, including an inner barrel, wherein the inner barrel defines a slide cavity, the slide cavity is defined for receiving the atomization core assembly; and a mouthpiece assembly, disposed at an end of the inner barrel for pushing against the atomization core assembly, such that the atomization core assembly slides relative to the inner barrel, and an end of the atomization core assembly is exposed to an outside of the atomizer. By configuring the mouthpiece assembly to push against the atomization core assembly, the atomization core assembly slides along the slide cavity of the inner barrel, and one end of the atomization core assembly is exposed to the outside. Therefore, it may be difficult for children to disassemble the atomizer core assembly, a risk of children removing the atomization core assembly and causing hazards to themselves may be reduced effectively.

Abstract: An atomizer includes: a liquid storage assembly, including an inner barrel, wherein the inner barrel defines a slide cavity, the slide cavity is defined for receiving the atomization core assembly; and a mouthpiece assembly, disposed at an end of the inner barrel for pushing against the atomization core assembly, such that the atomization core assembly slides relative to the inner barrel, and an end of the atomization core assembly is exposed to an outside of the atomizer. By configuring the mouthpiece assembly to push against the atomization core assembly, the atomization core assembly slides along the slide cavity of the inner barrel, and one end of the atomization core assembly is exposed to the outside. Therefore, it may be difficult for children to disassemble the atomizer core assembly, a risk of children removing the atomization core assembly and causing hazards to themselves may be reduced effectively.

Abstract: A fluidic oscillator contains at least one channel including an interacting cavity disposed therein, a first inlet communicating with the interacting cavity to flow fluid inward, and a first outlet communicating with the interacting cavity to spray the fluid flowing through the interacting cavity outward, characterized in that: at least one turbulent flow passage is used to guide the fluid to flow into the interacting cavities from one of two opposite first longitudinal walls of the interacting cavities so that a turbulent flow effect is generated in the interacting cavities, and then the fluid flows out of the first outlets to generate oscillatory spray.

Abstract: A multi-function shower head provides three water flower levels in response to three watering modes and comprises a low-flow controlling valve and a water flower generator such that the water flow passes through water flower generator to result in a centrifugal force, and then passes through a plurality of tunnels and a path to spray water, obtaining low-flow and strong water flower. Thereby, a water saving and strong flowing purpose of the shower head is achieved.

Abstract: A fluidic oscillator contains at least one channel including an interacting cavity disposed therein, a first inlet communicating with the interacting cavity to flow fluid inward, and a first outlet communicating with the interacting cavity to spray the fluid flowing through the interacting cavity outward, characterized in that: at least one turbulent flow passage is used to guide the fluid to flow into the interacting cavities from one of two opposite first longitudinal walls of the interacting cavities so that a turbulent flow effect is generated in the interacting cavities, and then the fluid flows out of the first outlets to generate oscillatory spray.

Abstract: A multi-function shower head provides three water flower levels in response to three watering modes and comprises a low-flow controlling valve and a water flower generator such that the water flow passes through water flower generator to result in a centrifugal force, and then passes through a plurality of tunnels and a path to spray water, obtaining low-flow and strong water flower. Thereby, a water saving and strong flowing purpose of the shower head is achieved.