1) D2 Steel
D2钢
1.
Study on new annealing heating process of large forging of D2 steel;
D2钢大锻件退火加热新工艺设计及研究
2.
The hardness variation of D2 steel under different quenching temperature and the influence of subzero treatment on hardness of D2 steel were studied,and its microstructure was analyzed as well.
研究了D2钢在不同温度淬火后的硬度变化,以及深冷处理对其硬度的影响,并对其显微组织进行了分析。
2) D2 die steel for cold working
D2冷作模具钢
3) D2 region
D2区
4) 26S rDNA D1/D2
26SrDNAD1/D2
1.
Based on the analysis of 18S rDNA and 26S rDNA D1/D2 domain sequence, along with its general morphology, physiological and biochemical characteristics, YS6-2 was identified as Rho.
基于形态学、生理生化特征、18SrDNA和26SrDNAD1/D2区域的分析表明,YS6-2为胶红酵母(Rhodotorula muci-laginosa)。
2.
[Objective] To investigate the reliability of single-strand conformation polymorphism(SSCP) analysis of 26S rDNA D1/D2 domain for rapid identification of clinical yeast species and to examine the distribution of the yeast species in clinical strains from Beijing.
【方法】用5种常见临床酵母菌种的模式和权威菌株作为标准参考菌株,从北京四家综合性医院收集临床酵母菌260余株,PCR扩增其26SrDNAD1/D2区,对扩增产物进行单链构象多态性(Single-Strand Conformation Polymorphism,SSCP)分析和序列测定分析。
5) d2 mid-diameter
中径d2
1.
This article introduces using comparative measuring method with Double Flank Gear Rolling Tester to measure the 1/2 M value,and then calculates d2 mid-diameter,without any special measuring tools and instrument.
本文介绍在没有专用量具、量仪的条件下,在双面啮合综合检查仪上用比较测量法,测出三槽丝锥的1/2M值,然后计算出中径d2的方法。
6) Vitamin D2
维生素D2
1.
Vitamin D2 in fat emulsion was extracted completely with tert-butylmethylether.
采用ALLTEC LiChrospher Si60色谱柱,以正己烷/异丙醇为流动相,通过叔丁基甲醚对维生素D2进行萃取,直接进行HPLC分离,对脂肪乳剂中维生素D2进行准确地测定。
2.
Ergosterol can be inverted into precursor of vitamin D2 under ultraviolet radiation, then it undergoes isom-erization to form vitamin D2 by thermal dehydrogenation.
麦角固醇在紫外线照射下可转化为维生素D2前体,加热异构失去两个氢原子得到VD2,是生产VD2、氢化可的松、黄体酮和芸苔素内酯的原料,市场需求呈上升趋势。
3.
OBJECTIVE: To establish a HPLC method for the simultaneously determination of Vitamin D2, Vitamin A and Vitamin E in Cernevit-12 for injection.
目的:建立以高效液相色谱法同时测定注射用12种复合维生素中维生素D2、维生素A与维生素E含量的方法。
补充资料：♀耐碱钢700
alkali-resistingsteel：能耐（抵抗）碱的腐蚀作用的钢（钢种）。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条