Abstract: Disclosed is an amorphous calcium phosphate gel, as well as a preparation method and use thereof. The method comprises: adding aminomethyl propanol to a propylene glycol solution containing a calcium source to obtain a mixture; slowly adding a phosphoric acid solution to the mixture to obtain the amorphous calcium phosphate gel. The amorphous calcium phosphate gel as provided in the present disclosure has an excellent stability, which shows no obvious phase change after being left at room temperature for 12 months. The method avoids the use of toxic and harmful agents, which allows the production process to be safe and environmentally friendly, and also ensures the safety of the product. The method has a simple process, which allows the large-scale production of the product and provides a basis for the wide application of the amorphous calcium phosphate gel in oral care.

Abstract: Disclosed is an auxiliary mounting device and a mounting method for a saddle-type window air conditioner. Two groups of mutually connected L-shaped main supports and L-shaped auxiliary supports are included. Main transverse supports are connected with auxiliary transverse supports, an upper surface formed after the main transverse supports are connected with the auxiliary transverse supports is a plane, and a connecting part of a saddle-type window air conditioner is located on the plane. The main transverse supports and the auxiliary transverse supports can move relative to each other, so that a distance between main vertical supports and auxiliary vertical supports is adjustable for adaptation to windows with different sizes, and that the applicability is strong.

Abstract: An enclosure is dimensioned to enclose an affected area of a body part plus a small margin around which a releasable seal is attached to make the enclosure substantially airtight around the body part without contacting the area to be treated. A port in the enclosure is attached to tubing for connection of a pump for forcing air under pressure into the enclosure. In the preferred embodiment, the enclosure is an inflatable plastic bag. The compression provided by the air pressure is applied uniformly to the body part to increase blood flow within the body part without physically contacting the affected area of the body part. In one embodiment, the pump is a combination air and vacuum pump so that pressures within the enclosure may be cycled between high and low pressures.