176. The most advanced insulation follows the law of increasing returns: if you add enough, you can scale down or even eliminate heating and air-conditioning equipment, lowering costs even before you start saving on utility bills.
译文
最先进的绝缘材料遵循收益递增的定律:如果你添加足够的绝缘材料,就可以按比例减少使用甚至不使用采暖和空调设备,甚至在打算要节省电费之前就可以降低成本。点睛
本句的主干是The...insulation follows the law...。冒号后的内容对主句进行解释说明,其中,if引导的是条件状语从句,现在分词lowering引导的复合结构作状语,before引导的是时间状语从句。scale down意为“按比例缩减、减少”。如:
The PR company has begun to scale down its operations in America. 这家公关公司已开始减少在美国的业务。
eliminate在句中意为“消除,排除”,该词还有“淘汰”之意。如:
He was eliminated from the tennis match in the first round. 他在网球比赛的第一轮比赛中就被淘汰了。
lower意为“降低,削弱”。如:
The temperature has lowered gradually this month. 这个月气温已经逐步下降了。
考点归纳
follow常见用法总结:
The police followed the criminal for two months. 警方跟踪这名嫌疑犯已经有两个月了。

You'd better follow his advice. 你最好照他的忠告去做。

I didn't quite follow what you said just now. 我不太明白你刚才所说的话。

The lightning was followed by a fearful clap of thunder. 闪电之后是一阵可怕的雷声。