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主应力
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主应力
物体内一点处单元体的某个斜面上剪应力为零时的正应力。
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automatic plug mill
automatic pocket sewing machine
automatic pocket welting machine
automatic potentiometric titrator
automatic premium loan provision
automatic production line
automatic programming
automatic protective device
automatic rate-adjustment mechanisms
automatic reasoning
automatic recording systems of red light cameras
automatic reeling
automatic reeling machine
Automatic Reel-Splicing Device
automatic regulation
automatic regulation principle
automatic regulatory systems
automatic repeat query,ARQ
automatic repeat request
automatic repeat request, ARQ
automatic result verification
automatic retrieval periodicals editing and typesetting
automatic riveting system
automatic road information acquisition vehicle
automatic runback device
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