Yes, most of them are, except for the plastic parts.

对，除了塑料制品其他都是。

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Most metal and plastic parts are designed to be manufactured, which means they can be clunky and contain material surplus to the part's function but necessary for making it.

大多数金属和塑料是为了生产而设计的，这就意味着它们会很重，并且含有与生产有关，但与其功能无关的剩余物。

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Now, parts get designed on computers and built from fiberglass and plastic, but the draw is still the same for younger designers.

现在，零件都是电脑设计，由纤维玻璃和塑料制成，但是画图同样需要年轻的设计师。

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Today, the automaker announced that it will repurpose 100 miles of oil-soaked plastic boom used during the Gulf oil spill into plastic parts for the Chevy Volt.

FORBES: From the Gulf oil spill to the Chevy Volt

Dow's engineers came up with a design calling for three plastic parts to do the same work as the 153 metal parts in the traditional mower.

FORBES: Chemical transformation

The Big Three automakers have heavily relied on Venture for plastic parts such as dashboards and bumpers.

FORBES: Detroit Stews As Venture Creditors Boil