名词
中文翻译：发动机框架
同义词：
['motor structure', "engine frame例句：1. The new car's motor frame is made of high-quality steel.（这款新车的发动机框架是由高质量的钢材制成的。）2. The engineer carefully inspected the motor frame before starting the engine.（工程师在启动引擎前仔细检查了发动机框架。）3. The old car's motor frame was rusted and needed to be replaced.（这辆旧车的车架生锈了，需要更换。）"]
例句：
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1. The new car's motor frame is made of high-quality steel.
这款新车的发动机框架是由高质量的钢材制成的。
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2. The engineer carefully inspected the motor frame before starting the engine.
工程师在启动引擎前仔细检查了发动机框架。
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3. The old car's motor frame was rusted and needed to be replaced.
这辆旧车的车架生锈了，需要更换。