nhc是什么意思

The NHC is an efficient modifier to make HTPB propellant obtain a high burning-rate of 80~ 100? mm/ s ( 9.8? MPa).

NHC是使丁羟推进剂获得80～100mm/s（9.8MPa）高燃速的有效调节剂。

This thesis mainly focused on the synthesis and asymmetric application of N-Ar axially chiral N-heterocyclic carbene ( NHC)-oxazoline ligands.

论文主要研究了氮芳基轴手性氮杂环卡宾恶唑啉配体的合成及其在不对称催化反应中的应用。

China has been making progress in terms of prevention and control of AIDS, said Wang Bin, an NHC official in charge of disease prevention, during the press conference.

在这场新闻发布会上，国家卫生健康委员会负责疾病预防的官员王斌称，中国已经在预防和控制艾滋病方面取得了进展。