Abstract: A quick-release trough plate hanger comprises a mounting plate, a clamping plate and a locking mechanism, wherein the clamping plate is slidably mounted on the mounting plate, the clamping plate is locked with the mounting plate through the locking mechanism, and a hanging strip is fixed on the clamping plate; the locking mechanism comprises a lock body mounted on the clamping plate and a zipper key; a sliding groove is formed in the lock body, and the zipper key is disposed in the sliding groove; the zipper key comprises a lock head a sliding block, a connecting post and a clamping post which are connected in sequence. The locking mechanism is disposed on the clamping plate, and the clamping plate can be locked and unlocked on the mounting plate by pulling the zipper key; the clamping plate can be locked by the locking mechanism at the corresponding position without movement.

Abstract: A quick-release trough plate hanger comprises a mounting plate, a clamping plate and a locking mechanism, wherein the clamping plate is slidably mounted on the mounting plate, the clamping plate is locked with the mounting plate through the locking mechanism, and a hanging strip is fixed on the clamping plate; the locking mechanism comprises a lock body mounted on the clamping plate and a zipper key; a sliding groove is formed in the lock body, and the zipper key is disposed in the sliding groove; the zipper key comprises a lock head a sliding block, a connecting post and a clamping post which are connected in sequence. The locking mechanism is disposed on the clamping plate, and the clamping plate can be locked and unlocked on the mounting plate by pulling the zipper key; the clamping plate can be locked by the locking mechanism at the corresponding position without movement.

Abstract: A detection method and detection apparatus for a gas delivery device, and a gas delivery device are provided. The detection method includes: controlling a gas inlet of a machine flow control apparatus to be connected to a first gas inlet pipeline, and controlling a gas inlet valve of the gas inlet to be opened and a gas delivery valve of the machine flow control apparatus to be closed; controlling a pump valve of the machine flow control apparatus to be opened, and controlling the pump valve to be closed after a flow rate of first gas passing through a mass flow controller (MFC) in the machine flow control apparatus reaches a preset target value; obtaining a first minimum flow rate value of the first gas passing through the MFC within a first preset duration; and determining the detection result.

Abstract: Disclosed embodiments include an open cell, molded polyurethane foam comprising the reaction product of a reaction mixture comprising: an isocyanate mixture; and a polyol formulation, comprising a glycerin-initiated, alkylene-oxide capped natural oil polyol having a molecular weight of between 3,000 and 8,000 and a polydispersity index (PDI) of between approximately 1.5 and 2.5, wherein the PDI is defined as the ratio of the weight-average molecular weight, Mw, to the number-average molecular weight, Mn.