How good sign production process, test swing carved this etching machine precision variable speed conveyor belt can, scouring the length of time can be adjusted here.
酒店标牌制作的工艺如何好，试刻这台精密摇摆蚀刻机传送带可以无级调速，冲刷时间的长短可以在这里进行调整。
The coach should attach importance to the training of pace length, arm swing, speed and stamina as well as psychological quality in order to improve their performance.
要提高中长跑的成绩，教练员要注意加强对运动员的步长训练、摆臂训练、速度耐力训练、心理素质训练和成绩测试工作。
The coach should attach importance to the training of pace length, arm swing, speed and stamina as well as psychological quality in order to improve their performance.
要提高中长跑的成绩，教练员要注意加强对运动员的步长训练、摆臂训练、速度耐力训练、心理素质训练和成绩测试工作。
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