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steering trapezium造句
OptimumdesignofsteeringtrapeziumintractorTheoptimizationmodelsofsteeringtrapeziumsystemandportraittransmissionarebuilt....
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trapezium造句
Inthisarticle,wereviewtrapeziumsparingoptionsfortreatmentofthumbcarpometacarpaljointarthritis.Therollersandringaredesignedininvertedtrapezium,whichreducethematerial'sslipvelocitybetweenrollersandring...