如果对象的使用频率不高，或者对象的创建或销毁成本不高，则对象池可能不是正确的策略。
If your objects are not used with high frequency or do not have a high creation or destruction cost, then object pooling might not be the right strategy.
结果①新型金属夹具式可调节及可换式传感器检测池可实现传感器在液相中的频率稳定性；
Results A new sensor-testing pool with the metal clamping of the adjustable and exchangeable style was able to solve the problem of the frequency stability in liquid phase.
在电磁搅拌作用下，电磁力的大小随钢液液池宽度的增加呈指数衰减趋势，其衰减速率与电流频率和搅拌器极距有关。
The electromagnetic force decays rapidly in the molten steel, and its decaying speed is related to the current frequency and polar pitch of the stirrer.
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