ultra-high h frequency converter 超高频变频器
hi h frequency arc 高频电弧
Tooth-mesh h frequency 齿啮合频率
speech h frequency amplifier 语频放大器
sawtooth h frequency modulator 锯齿波调频器
ultra-high h frequency receiver 超高频接收机
Objective Survey the frequency of H deficient phenotype in blood donor population and analyze the serological and genetic characteristics of these individuals.
目的调查献血者人群中H抗原缺失血型的表型频率，研究其血清学和遗传学特征。
Plasma chemical vapor deposition in silane radio frequency glow discharge is a main fabrication technology of hydrogenated amorphous silicon (a-Si: h) films.
射频辉光放电硅烷等离子体化学汽相沉积是制备氢化非晶硅薄膜的主要工艺技术。
The high frequency welding H-section steel has properties of broad and thin section component. Its higher axial lateral resistance capacity forms rigid frame.
高频焊接H型钢具有宽肢薄腹构件的特征，其强轴方向具较强的抗侧能力，形成刚性框架。
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