当您调用第三方代码而这些代码没有使用监视器的有些时候不可能达到上面的要求， 在此情况下，您所能采取的最佳做法 是尝试在进行池操作时使创建的垃圾量最小。

Sometimes this isn't possible when you're calling third-party code that doesn't use monitors. In such cases, the best you can do is try to minimize the amount of garbage you create while polling.

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接着采用铝合金材料和优化设计方法对车架进行重新设计，在满足车架强度和刚度要求的情况下，使车架达到最轻。

Subsequently, on the premise of strength and stiffness requirement, the chassis is redesigned to be lightest with aluminous alloy and optimized design method.

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