例句與造句

1. The first pendulum to correct for this error was the " mercury pendulum " invented by mercury.
2. For these reasons mercury pendulums were used in the highest precision clocks, but gridirons were used in quality regulator clocks.
3. The master clock " ( bottom center ) ", controlled by a temperature-compensated mercury pendulum, is wired to slave clocks throughout the building.
4. Gridiron pendulums adjust to temperature changes faster than mercury pendulums, but scientists found that friction of the rods sliding in their holes in the frame caused gridiron pendulums to adjust in a series of tiny jumps.
5. It's difficult to find mercury pendulum in a sentence. 用mercury pendulum造句挺難的