air ball 三不沾;空炮;篮外空心球
- During the first thermosonic bonding <100> oriented grains, which originate from the columnar grains in the free air ball, can be seen in the bond center region.
键合前金丝球中心区域仍保持原来的〈100〉取向,且这种取向可保留到一次键合后的样品中心; - Small electro-magnetic vibrators, small vibrating motors and compressed air ball vibrators produce up to 20,000 oscillations per minute and centrifugal forces up to 4,5 kN.
小型电磁振动器、小型振动电机和压缩空气球形振动器可产生每分钟2万转的转速。离心力可达4.5kN。 - This happens a LOT on sup'air ball fields, so watch out and be smart.
这种状况在充气掩体的场地很常发生,所以要注意且聪明点。
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