Higher the rake Angle, better is the cutting and less are the cutting forces, increasing the rake Angle reduces the metal backup available at the tool rake face.

前角越大，则切削越好且切削力越小，增加前角可以减少刀具前倾面上产生的金属阻塞。

youdao

Few situations are as distressing as having a physical server crash and discovering that your backup is useless and then that your machine must be rebuilt using bare metal procedures.

最让人痛苦的极端情况是物理服务器崩溃并发现备份不能用，然后不得不从裸机开始重新构建环境。

youdao

Fire Safe - Secondary metal-to-metal seal ACTS as backup if primary seal is destroyed by fire.

防火安全-如果第一个密封被火烧坏，则第二个金属对金属密封作为后备密封发挥作用。

youdao

The server farm has a single entrance and is outfitted by half-meter thick metal doors and backup generators pulled from German submarines --fitting safeguards, perhaps.

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