Abstract: Disclosed is a detachable and washable anti-slip carpet, including a carpet layer. A base layer is arranged at a bottom of the carpet layer, a plurality of oppositely positioned J-shaped anti-slip convex teeth are formed along four peripheral edges of an upper surface of the base layer in a staggered array manner, the plurality of J-shaped anti-slip convex teeth are grouped in a left-right direction and in the staggered array manner, tops of the plurality of J-shaped anti-slip convex teeth are all in contact with four peripheral edges of a lower surface of the carpet layer, the J-shaped anti-slip convex teeth are fitted with the lower surface of the carpet layer at an angle, and anti-slip convex columns and through holes are arranged on a lower surface of the base layer in a staggered manner. The base layer directly grips and secures the carpet layer, thereby preventing slippage.

Abstract: Disclosed is an easy-to-wash detachable carpet, including a surface layer and a base layer. The surface layer is a warp-knitted suede-like fabric layer, including a first pile surface made up of first pile fibers, and the base layer is a single-sided cut-pile fabric layer, including a second pile surface made up of second pile fibers, where the second pile fibers are inclined. The first pile surface faces the second pile surface, and the first pile fibers penetrate the second pile fibers and interlock with the second pile fibers. A preparation method for the easy-to-wash detachable carpet is further disclosed. Compared with the prior art, the easy-to-wash detachable carpet of the present has advantages including that the lightweight surface layer can be removed and cleaned easily when needed, which meets hygiene requirements for carpet use.

Abstract: Provided is a system for supplying a liquid (such as an irritative chemical solution) safely. This liquid supplying system comprises: (a) a means that creates a negative pressure in a treatment chamber by driving a first depressurizing means and depressurizing the treatment chamber; (b) a means that introduces the negative pressure of the treatment chamber to a measurement chamber; (c) a means that maintains the negative pressure introduced to the measurement chamber; (d) a means that sucks a liquid from a container into the measurement chamber by employing the negative pressure of the measurement chamber; and (e) a means that sucks the liquid of the measurement chamber into the treatment chamber by employing a vacuum in the treatment chamber.

Abstract: Provided is a system for supplying a liquid (such as an irritant chemical solution) safely. This liquid supplying system comprises: a base on which a container containing liquid is placed; a hollow needle having a spired part; a first movement mechanism that moves the needle between a first needle position at which the spired part is separated from the container and a second needle position at which the spired part is passed through a wall of the container; a hollow tube having a smaller outer diameter than the inner diameter of the lumen of the needle; and a second movement mechanism that moves the tube between a first tube position separated from the container and a second tube position at which the tube is passed through the lumen of the needle located at the second needle position and is inserted inside the container.

Abstract: Provided is a system for supplying a liquid (such as an irritative chemical solution) safely. This liquid supplying system comprises: (a) a means that creates a negative pressure in a treatment chamber by driving a first depressurizing means and depressurizing the treatment chamber; (b) a means that introduces the negative pressure of the treatment chamber to a measurement chamber; (c) a means that maintains the negative pressure introduced to the measurement chamber; (d) a means that sucks a liquid from a container into the measurement chamber by employing the negative pressure of the measurement chamber; and (e) a means that sucks the liquid of the measurement chamber into the treatment chamber by employing a vacuum in the treatment chamber.

Abstract: Provided is a system for supplying a liquid (such as an irritant chemical solution) safely. This liquid supplying system comprises: a base on which a container containing liquid is placed; a hollow needle having a spired part; a first movement mechanism that moves the needle between a first needle position at which the spired part is separated from the container and a second needle position at which the spired part is passed through a wall of the container; a hollow tube having a smaller outer diameter than the inner diameter of the lumen of the needle; and a second movement mechanism that moves the tube between a first tube position separated from the container and a second tube position at which the tube is passed through the lumen of the needle located at the second needle position and is inserted inside the container.