机械翻译高手请进,帮忙翻译几个句子~谢谢~

机械翻译高手请进,帮忙翻译几个句子~谢谢~
1.While titanium-based alloys exhibit excellent properties at elevated temperatures like nickel-based alloys, they have densities tending more towards aluminum (2.8 g/cm3) than nickel (8.8 g/cm3).
2.One such approach of normalizing the effect is to take a ratio of the flank wear (length amount of material removed on the flank) and then divide it by the actual length of pass for material removed.
3.Innovative tools like self-propelled rotary tools are also worth consideration as evident from results given in the same table where self-propelled rotary tools revealed significant improvement in tool life.