Abstract: A microbial strain of Lachnospiraceae is a species of a genus of the family Lachnospiraceae (Lachnospiraceae sp.). The nucleotide sequence of 16S rRNA of the microbial strain of Lachnospiraceae is as shown in SEQ ID No. 1. The intestinal anaerobic microbial strain Lachnospiraceae sp. can inhibit the growth rate of tumors and can be used for preventing and/or treating tumors. The tumors include at least one of liver cancer, colon cancer, rectal cancer, colorectal cancer, lung cancer, breast cancer, cervical cancer, ovarian cancer, pancreatic cancer, cholangiocarcinoma, kidney cancer, and fibrosarcoma.

Abstract: The present invention provides a fissured substrata water pumping apparatus and methods thereof. The fissured substrata water pumping apparatus includes a water pumping pipe inserted into a drilled hole under a roadway floor; one or more unidirectional water-blocking plates configured inside the water pumping pipe; a servo pump; and an annular drainage siphon having a first end connected to an upper end of the water pumping pipe, and a second end connected to an inlet end of the servo pump through a valve.

Abstract: The present invention provides a fissured substrata water pumping apparatus and methods thereof. The fissured substrata water pumping apparatus includes a water pumping pipe inserted into a drilled hole under a roadway floor; one or more unidirectional water-blocking plates configured inside the water pumping pipe; a servo pump; and an annular drainage siphon having a first end connected to an upper end of the water pumping pipe, and a second end connected to an inlet end of the servo pump through a valve.

Abstract: An anchoring and anti-clogging drill rod for a coal mine floor and methods thereof are provided. The anchoring and anti-clogging drill rod includes a hollow drill pipe and a hollow sleeve configured inside the hollow drill pipe. A front joint is configured at a front end of the hollow drill pipe. A back joint is configured at a back end of the hollow drill pipe. The hollow sleeve is wound with a spiral connection line in a direction opposite to a rotation direction of the anchoring and anti-clogging drill rod during drilling. A spiral-shaped space is formed between the spiral connection line and an inner chamber of the hollow drill pipe.

Abstract: A vibrating screen. The vibrating screen includes a vibrator, a screen box and a base. The vibrator includes at least a motor and an eccentric block coupled thereto. Each motor has a main motor shaft (2, 2A, 2B). A rotor winding (12) and a stator winding (11) are mounted at one end of the shaft (2). Another rotor winding (14) and stator winding (13) or a counterweight (5, 500) which is equal to them in weight are mounted at the other end of the shaft (2).