Phenol polymers are produced at an annual rate of 2.2 million metric tons per year in the United States for many industrial and commercial applications including durable plastics.
美国每年生产大约220万公吨的苯酚高分子材料，用于工业和商业领域，包括生产耐用塑料。
People often complain that plastics are too durable.
人们经常抱怨塑料过于持久耐用。
The inside is made of durable steel to withstand high-temperature exhaust gases, while the outside is made of engineered plastics.
里面是耐用的钢承受高温的废气，而外面是工程塑料。
The inside is made of durable steel to withstand high-temperature exhaust gases, while the outside is made of engineered plastics.
里面是耐用的钢承受高温的废气，而外面是工程塑料。
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