Abstract: A hinge mechanism, including a base, a first rotating part, a linkage member, and a floating support part. In a case that the hinge mechanism is in a first state, a connecting part of a first linkage member is located on one side of the base, a connecting part of a second linkage member is located on another side of the base, at least one of a plurality of second rotating parts supports the floating support part, and a distance between an outer side wall of the base and the floating support part is a first distance. In a case that the hinge mechanism is in a second state, the connecting parts of the first linkage member and second linkage member are both located on a side of the base facing a screen support side, the second rotating part avoids the floating support part, the distance is a second distance.

Abstract: The present disclosure relates to a hybrid bit with roller cone having inserts, comprising a bit body, blades disposed with the bit body, a plurality of fixed cutting elements arranged side by side along the outer edge of blades and roller cones mounted with the said bit body in circumferential and alternate arrangement with the said blades, the said roller cones having multiple rows of cone inserts arranged side by side along the meridian direction of cones, and the said cones having multiple rows of cone inserts arranged side by side along the weft direction of cones, the cutting insert rows of adjacent two cones herein are in alternate arrangement, the cutting insert rows of adjacent two cones are in derangement and the insert placement structure in the plurality of cones is the same.

Abstract: By preliminarily measuring the gallium temperature and the length change of a temperature sensing element comprising a carbon nanotube having a continuous column of gallium contained therein, then heating the temperature sensing element installed in a subject to increase the temperature thereof in air, removing the temperature sensing element subjecting to measure the gallium length, and substituting the measured gallium length in a formula, the temperature is measured accurately over a wide temperature range in a micrometer size or less environment.

Abstract: By preliminarily measuring the gallium temperature and the length change of a temperature sensing element comprising a carbon nano tube having a continuous columnar gallium contained, then heating the temperature sensing element installed in a subject to have the temperature measure in the air, taking out the temperature sensing element subjecting to measure the gallium length, and substituting the measured gallium length in the formula, the temperature is measured accurately in a wide temperature range in a micrometer size or less environment.