1. 流線形：因此,车身的线条设计,通常都以看起来要有流线形(Streamline)的方向来做. 这些车身线条的转折,一般都会用曲线的柔缓来呈现,最忌讳突兀设计. 台铁柴电机车前头的倒人字形线条,便是很好的涂装示范. 其车身中后段,白线以曲线下降到跟一般客车白线同高,

1. 使(机构或过程)效率更高;精简
To streamline an organization or process means to make it more efficient by removing unnecessary parts of it.

e.g. They're making efforts to streamline their normally cumbersome bureaucracy...
他们正努力精简本来繁冗复杂的官僚体制。
e.g. They say things should be better now that they have streamlined application procedures.
他们称鉴于他们已经简化了申请手续，情况应该会有所好转。

verb

1. contour economically or efficiently