WITH结构
我们先复习一下“分词独立结构” This force can be resolved(分解) into two components(分量), one of them vertical(垂直的) and the other horizontal(水平的). An arbitrary(任意的) superposition(叠加) of plane waves(平面波), each of the form(形式) of Fig. 1.6, propagates(传播) along(沿) all conceivable(可想象的) directions(方向). Resistor(电阻器) R removed(去掉), the wideband(宽带) gain(增益) of the amplifier(放大器) is 100.
WITH结构 一、形式 分词(短语) 介词短语 副词 with + 名词 + 形容词(短语) 不定式短语 名词 （它也是一种“独立结构”） 二、特点 1、“with”无词义 2、这个“with”是普通介词还是构成“with结构”，只能根据对全句含义的试探来判断 3、其否定形式可以用“without”
三、功能：主要作状语和定语 1、状语 （1）在句首：可表示（通过试探）以下含义[以前两个为多见] 时间：“当…时候；在…以后；随着” 条件：“如果；在…情况下” 原因：“由于；因为” 让步：“即使；虽然” 对主语的附加说明：译成一个并列分句 With the battery(电池) terminals(端点) reversed(反过来), the result(结果) will be quite(十分) different. With the amplifier(放大器) off(关闭), P1=P2.
With friction(摩擦) present(存在的), a part of power(功率) has been lost(丢失) as heat(热). Without the air to hold(吸住) some of the sun’s heat, the earth at night would be freezing cold(冰冷), too cold for us to live. Without the temperature(温度) or pressure(压力) changed, matter(物质) can never change from one state(状态) into another. With this in view(被考虑), we have attempted(尝试) to write this book.
With the switch still closed(闭合), the balance(平衡) point can be found(找到) by trial and error(试凑法). With electronic systems becoming more complex(复杂的), the achievement(获得) of reliability(可靠性) has become an increasingly(越来越) difficult problem. With these definitions(定义) in hand(手), Eq.(6) can be transformed(转换) term(项) by term.