It is the first critical choice a child has to learn because it is a choice they will be faced with over and over at every stage in their life.
这是孩子必须首先要学习的最为关键选择，因为这是他们一生中的各个阶段都反复要面对的选择。
Solid particle erosion (SPE) is very critical on the life cycle of control stage nozzle for supernormal parameters steam turbine.
固体颗粒冲蚀严重影响超常参数汽轮机调节级喷嘴寿命。
Solid particle erosion (SPE) is very critical on the life cycle of control stage nozzle for supernormal parameters steam turbine.
固体颗粒冲蚀严重影响超常参数汽轮机调节级喷嘴寿命。
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