bn的意思|示意

He says that a further . 75 bn will be needed to develop Solomon.

帕斯摩尔表示,开发Solomon将需要另外27.5亿美元资金.

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Besides diamond and c - BN, � � － C 3 N 4, c - BCN and fullerenes are also potential candidates for superhard materials.

在B - C- N系 超硬材料中,除了金刚石和立方氮化硼(c - BN)以外, β-C_3N_4 、 立方氮碳化硼以及富勒烯等材料,也正日益受到国际材料界的重视.

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High properties transparent Si 3 N 4 - BN - SiO 2 ceramic composites with Si - B - O - N based were prepared by gas pressure sintering ( GPS ).

本研究选择 Si3N4 -BN-SiO2体系,通过气氛压力烧结工艺 ( GasPressure Sintering,GPS ) 研制了耐高温、抗冲刷Si-B-O-N系陶瓷透波材料.

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The government raised about $ 3 bn less than it could have.

在中国人寿案例中,政府本可多筹30亿美元的资金.

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Wherever you are in the world, you can enjoy standardized professional services of BN.

无论您身在世界的哪个地方, 都能享受到bn在中国的专业化、准化的服务.

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Hexagonal boron nitride ( h - BN ) has better dielectric properties, good conductivity and thermal shock resistance and machinability.

六方氮化硼 ( h-BN ) 陶瓷具有优异的介电性能 、 良好的机械加工性能、良好的抗热震性能.

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