【医】 臂运动中枢

警报中心夜以继曰，以完善的设备迅速且有效率地满足企业客户的医疗保健需求。

flat-bed sewing machine, free-arm sewing maschine

spring-operated, throwing arm clay pigeon trap

arm strength

rake, shovel, pusher, swivel arm, pestle

maximum swing angle of steering pitman arm【机】

swivel arm punch

rocker arm

radial-arm saw