单词	hand screw
释义	Hand screw a small jack for raising heavy timbers or weights (Carp.) a screw clamp. See also: Hand, Hand Hand screw Hand screw A clamp with two parallel jaws and two screws used by woodworkers; the clamping action is provided by means of the screws, one operating through each jaw. screw clamp screw clamp Any clamp set by means of a screw, but esp. one used in woodworking which has two large parallel jaws for holding the work to be pressed together.
随便看	outer enamel epithelium outer envelope outer envelope membrane protein of 75 kilodaltons outer envelope protein of 16 kilodaltons outer fence outer fix outer fix time outer-fix time outer garment outer garments outer gimbal outer gimbal angle outer gimbal axis outer glide slope outer hair cell outer hair cell, arcuate-pectinate outer hair cells outer hamstring outer harbor outer harbor intermodal terminal outer harbour sailing federation outer head temperature control system outer hearth outer hebrides outer hebrides broadcasting corporation

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