отношение ... к

• Ratio between room-temperature and 500° resistivities is 2.52 for silver, 2.71 for gold and 2.9 for copper.

• The ratio of height to diameter is extremely low.

• The measurement of ethane to ethylene ratio was required.

• Gas-oil ratio of 550:1 ...

• Steam-hydrocarbon feed weight ratio ...

• The plate thickness to hole diameter ratio ...

• They found the temperature-pressure relation(ship).

• Relation(ship) between counting efficiency and average energy ...

• Normally the densities of fresh water and salt water are in the ratio of 40:41.