back and forth movement 中文意思是什麼

back and forth movement 解釋
往返運動
  • back : n 1 背，背部；背脊；背面，反面；背後，後部，後面，裏面。2 （指）甲；（刀）背；（手）背；（書）背...
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • forth : adv. 1. 向前，向前方。2. 以後。3. 向外，由隱而顯。〈古語〉出於，來自。 go forth the house 從屋裡出去。
  • movement : n 1 運動；活動；進退 行動 動靜；動搖；動作；舉動；〈pl 〉姿勢；態度。2 移動 遷移。3 （市面的）活...
  1. These days the daughters all do not have the bowel movement, cause the evening to compare are not easy to let her sleep, evening even must use the method which sways to be able to cause the daughter peacefully to lie down, yesterday bought the new book said shaken baby syndrome was one kind of fearful oppressive behavior, baby ' s head fiercely is back and forth swayed, got out of bed the strength which on or the bosom got down to be also bigger than, therefore our parents did swaying could not cause the damage to the baby

    這幾天，不知是不是女兒都沒有大便，導致晚上比較不容易哄著入睡，晚上甚至必須使用到搖晃的方法才能使得女兒安靜地躺著，昨天買的新書說嬰兒搖晃癥是一種可怕的虐兒行為，寶寶的頭被來回劇烈搖晃，比起床上或懷里下來的力道還大，因此我們家長所做的搖晃對嬰兒不會造成傷害。
  2. The special design of double taper mill barrel can make mill bead do auto back - and ? forth movement and stay in a dynamic balance state, thereby ensure the mill bead distribute more even and get a better distribution effect

    雙錐型研磨腔特殊設計，可使研磨珠自動往返運動，處於一個動態的平衡狀態，確保研磨珠分佈更加均勻，分散效果更佳。
  3. This machine is newly researched and designed by our factory based on the model of combined cam, it winds up the plastic tape by the back and forth movement of the swinging stem driven by the cam

    採用心型凸輪的旋轉來帶動擺桿作來回移動而卷繞成形。比原往復絲桿的結構運轉更加輕松
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