As these films use less material they are cheaper to produce, not least because they can be deposited on bases like metal, glass and plastic.
因为这些薄膜使用较少的原料，从而使得它们的生产成本更低。同样重要的是，它们可以被装配在诸如金属、玻璃和塑料等基底之上。
That is, of course, not the case, largely because those $99 and $199 devices use cheaper resistive touchscreens which can be a real pain to use.
当然，最终99美元和199没有的产品并未占领市场，恐怕主要是因为他们采用了更廉价但是用起来非常痛苦的电阻式触摸屏。
Another type of test not studied by the researchers has become popular because it is cheaper and can be done at home.
研究者没有研究的另外一种测试已流行起来，因为它很便宜且可以在家里进行。
Cells can be made from other, cheaper materials, but these are not as efficient as those made from silicon.
其它低廉的材料也可用来制造此种电池，但效率不及硅电池。
Cheaper rates on health and life insurance can be obtained by buying group policies through the business that are not normally available to families.
通过企业投保团体险，可以办理保费较低的健康险和人寿险——这通常是一个个家庭所享受不到的。
Where this is not important a lower, cheaper grade of paper can be chosen.
然而，选择等级更低档、更便宜的纸并不那么重要。
EXAMPLE: Taking a taxi to the airport can be rather expensive, and taking a gypsy cab is much cheaper, but not necessarily safe or appropriate, so I always take properly licensed cabs.
打的去机场非常贵，打黑车便宜得多，但不一定安全，也不太合适，所以，我总是叫有照经营的出租车。
EXAMPLE: Taking a taxi to the airport can be rather expensive, and taking a gypsy cab is much cheaper, but not necessarily safe or appropriate, so I always take properly licensed cabs.
打的去机场非常贵，打黑车便宜得多，但不一定安全，也不太合适，所以，我总是叫有照经营的出租车。
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