is used

• The nib is broken , it can 't be used .
  这笔尖坏了，使不得了。
• Glaze has been used from ancient times in egypt .
  埃及自古代起就使用釉料。
• Sometimes the terms are used rather loosely .
  有时使用的名称是不够严谨的。
• It must be used with some reservation .
  使用该物时一定要谨慎。
• The two methods can be used alternately .
  两种方法可交互使用。
• They can only be used before the noun .
  它们作只能用于名词前。
• Double-headed arrows are used to indicate resonance .
  双箭头用来表示共振。
• Both pelvic and thoracic sling restraints are used .
  用吊带约束髋部和胸部。
• A series of batch biological reactors are used .
  可用一组间歇式生物反应器。
• The book is designed to be used in two ways .
  这本书是为两方面的用途构思的。