PREP1-43

山炮

B 是说飞机承载能力 不同。也就是新材料意味着更多的载重-（和经济效益有关）。
E说的是aircraft manufacturers ，应该算无关选项。

ziqi483

B的言下之意就是新涂层可以提高load-bearing capacity，这不就体现long-term economic interest了吗？

iSonic

B是说新的方法使飞机的载重量增加了，这样不就可以赚更多钱了嘛。 buda B的翻译有问题，不是降落承重。

bonfin

B是说新的方法使飞机的载重量增加了，这样不就可以赚更多钱了嘛。 buda B的翻译有问题，不是降落承重。

-- by 会员 iSonic (2010/12/1 11:15:34)

thx

xpyin

Paint on a new airliner is usually applied in two stages:  first, a coat of primer, and then a top coat.( 背景)  A new process requires no primer, but instead uses two layers of the same newly developed coating, with each layer of the new coating having the same thickness and weight as a traditional top coat. （前提） Using the new process instead of the old process increases the price of a new aircraft considerably.（前提）
Which of the following, if true, most strongly indicates that it is in an airline's long-term economic interest to purchase new airliners painted using the new process rather than the old process（结论）
简化一下：
旧：P+C；新：2C（新C=旧C厚重）
新比旧贵
结论：对于买飞机的人长期来说还是新的划算（注意是对谁划算）

选项：
(A) Although most new airliners are still painted using the old process, aircraft manufacturers now offer a purchaser of any new airliner the option of having it painted using the new process instead.
虽然大多数大多数飞机还是使用旧的喷漆，飞机制造商现在提供买新飞机的客户选择新的喷漆的机会。无关
(B) A layer of primer on an airliner weighs more than a layer of the new coating would by an amount large enough to make a difference to that airliner's load-bearing capacity.飞机上的一层P比一层新的C重到可以影响到飞机的承重能力。如果新的解决了这个问题，对于购买者来说，新飞机可以装更多客户，即长期经济好处。
(C) A single layer of the new coating provides the aluminum skin of the airliner with less protection against corrosion than does a layer of primer of the usual thickness新C的在给铝皮飞机防止腐蚀保护方面没有老的P好，weaken.
(D) Unlike the old process, the new process was originally invented for use on spacecraft, which are subject to extremes of temperature to which airliners are never exposed.不同于老的，新的最初是用于造宇宙飞船的，能够抵抗飞机从来不会遭受的极端温度。不涉及经济好处，而且是飞机从来不会遭受，即使好没有用武之地。
(E) Because the new coating has a viscosity similar to that of a traditional top coat, aircraft manufacturers can apply it using the same equipment as is used for a traditional top coat.因为新的C有一层粘液，和老的C很接近，飞机制造商可以应用一样的技术。这里说的是制造商，无关。

1030430882

这个需要脑子再转个弯，涂层轻了，那么载重就多了，把每次多余的载重产生的经济效益加起来，不就产生很大的长远利益了么我是这么理解的啦~

qingping01

好难想到重量和经济效益的关系啊     大家是怎么想到的？？

qingping01

xpyin 发表于 2012-2-7 10:01
Paint on a new airliner is usually applied in two stages:  first, a coat of primer, and then a  ...

解释的太棒了， 不得不手动点赞

笛安

buda 发表于 2008-5-9 09:53
Paint on a new airliner is usually applied in two stages:  first, a coat of primer, and then a  ...

谢谢！分析的好透彻！懂了！