... volume thermal expansion coefficient 体积热膨胀系数 volume to weight ratio 容重比 volume weight 体积重量 ...
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Portal venous velocity index (PVI) was defined as the ratio of PVV to graft weight (GW), and portal flow volume index (PFI) as the ratio of PVF to GW.
门静脉流速指数(PVI)被定义为PV V与移植物重量(GW)的比率，门静脉血流量指数(PFI)为PVF与GW的比率。
High-volume ratio: a compact design, small size, light weight, flexible and convenient to carry.
高容积比：紧凑设计，体积小，重量轻，携带灵活方便。
The cost of the power supply is low, the volume is small, the weight is light, and the ratio of property to price high. It should be a kind of c...
该送丝电源成本低，体积小，重量轻，性价比高，是一种值得推广的电路。
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