Ac c essory weight 选配加重
Conclusions: The ultrasonic measurement of fetal AC is a simple and valuable index in estimation of fetal weight.
结论：应用超声测量胎儿腹围预测出生体重，方法简单，且较准确，有较好的临床实用价值。
The Moog pitch motor is an ac synchronous motor with a unique design distinguished by its compact size, low weight and high power density.
穆格倾斜电机为交流同步电机具有独特的设计，其小巧的外形区别，低重量和高功率密度。
DC Variable AC, quasi-sine wave. Automatic protection, safe and reliable. Small size, light weight and high efficiency. Pollution-free, maintenance-free, easy to use.
直流变交流，准正弦波。全自动保护，安全可靠。体积小，重量轻，效率高。无污染，免维护，使用方便。
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