Abstract: A method for producing jelly bobas includes steps providing an apparatus for producing jelly bobas comprising a tank, a cutting set and a pool, wherein the tank comprises a main body and a bottom plate, the bottom plate comprises a plurality of holes and the cutting set is positioned under the bottom plate; continuously pouring a gel into the tank, wherein the gel has a viscosity ranged between 25000 and 95000 cps at 6 rpm or between 30000 and 180000 cps at 3 rpm as measured with LV-4 spindle of Brookfield Viscometer; the gel continuously passing through the plurality of holes by means of a gravity thereof; the cutting set continuously cutting off the gel passed through the plurality of holes in a rotation manner for continuously forming a plurality of jelly bobas; and the pool receiving the plurality of jelly bobas and a solidifying agent contained therein shaping the jelly bobas.

Abstract: A well drilling system includes a platform mounted on the ground, a tubular sleeve mounted movably on the platform, a drilling device inserted into the sleeve, and a circulation device. The drilling device includes a support seat connected detachably to a lower end of the sleeve, a drilling head mounted rotatably on the support seat, and at least one powered actuator connected to the support seat and the drilling head to actuate the drilling head to rotate relative to the support seat. The circulation device includes a pipe, and is mounted inside the sleeve for removing soil out of the sleeve.