excessive wear

基本解释

Discard and replace valve if it shows excessive wear or residue build-up.
如阀门过度磨损或堵塞请及时更换。
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“ All four canine teeth must be present and must not be weakened by notching, enamel hyperplasia or abnormal, excessive wear, ” it reads.
文件上是这么记载的， “所有四颗犬齿必须健在，不能有缺口，珐琅质异常增生或过度，磨损过度等等问题。”
This can result in the engine being unable to crank due to the high oil viscosity, or worse, the engine being unable to pump the oil resulting in excessive wear on startup leading to engine failure.
这样一来，因为润滑油的粘度过高，可能会导致发动机无法转动曲轴，或者出现更糟糕的情况，那就是发动机无法泵送润滑油，从而导致启动时出现过度磨损，甚至引起发动机故障。

Have them replaced whenever they appear cracked, brittle, frayed, become loose or show signs of excessive wear.
FORBES: Cars That Can Last For 250,000 Miles (Or More)
Look for other signs of excessive wear on the arm-rest, the floor mats, the pedals for the brakes and gas, and the area around the ignition.
FORBES: Feds Charge Pair with Sales of 247 Mileage Tampered Cars