Carbon dust and oil build up in large motors and cause them to short-circuit.

碳尘和燃油在大发动机里越积越多，造成了发动机短路。

柯林斯例句

Made with purify carbon dust 、 pyrethrum no smoke 、 taste after light and do not irritate pneogaster 、 safety 、 higher effective.

本品采用高效拟除虫菊酯为有效药物精心配制而成,无烟环保,驱蚊力强,气味芳香,不污染环境,对人体无刺激.

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