convenient

• Mathematical models are especially convenient to devise .
  数学模型特别容易设计。
• It is a more convenient way to pay for purchases .
  这是支付货款的一种比较方便的手段。
• It provides a convenient scale length for barometer .
  这为气压计提供了适宜的刻度长度。
• We shall find it convenient to adopt the following notation .
  采用下面的记号是方便的。
• It is convenient to introduce here the summation operator .
  应当在此介绍一下求和的算符。
• With people around , it was n't convenient to talk about the matter .
  周围有人，不便启齿。
• It is often convenient to use an "effective guide index. "
  采用“波导有效折射率”是方便的。
• It is of convenient length .
  它的长度合适。
• Travellers find it convenient .
  行旅称便。
• At about fifteen minutes to three . will that be convenient for you ?
  大约2点45分，对你方便吗？