Abstract: The present disclosure relates to a measuring method and device for trace and ultra-trace oil content. The measuring device of the present disclosure includes a cryogenic enriching device, an extracting device and an infrared spectrometer; The cryogenic enriching device includes a Dewar container and a U-shaped pipe; The extracting device includes an extractant container, an input pipe, an outlet pipe and an extraction liquid quantitative pipe; A mass flowmeter is further disposed on the U-shaped pipe, the oil content in the gas is calculated according to the measured total mass of the gas and the oil concentration of the extraction liquid measured by the infrared spectrometer. The present disclosure further provides a measuring method, which converts the measurement of oil content in gas into the measurement of oil concentration in liquid extractant through effective extraction by liquid nitrogen cold trap enrichment mode, and adopts infrared spectrophotometry to accurately measure.

Abstract: The present invention discloses a wire storage. The wires are stored within an independent channel which, by means of a zipper, can be removably winded on to the main body, thus storing the wires and effectively protecting the same; when the channel is connected by means of the zipper to the main body, the channel becomes a part of the storage. A further storage space is formed within the main body of the storage, or a new storage space is formed when the zipper is closed, the spaces are able to be adapted for use with other electronic products and thus enhancing the utility of the product. The present invention greatly decreases the possibility of wires being damaged or broken by external forces, is suitable for a variety of usage scenarios, and is aesthetically pleasing and convenient to use.