So the construction of a large top grade constant temperature swimming bath will be prevalent.
因此建设一个大型高档恒温游泳馆将会受到广大游泳爱好者的欢迎。
This grade has excellent flow and improved ambient and low temperature toughness.
本级具有良好的流动和改善环境和低温韧性。
This grade has excellent flow and improved ambient and low temperature toughness.
本级具有良好的流动和改善环境和低温韧性。
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