1) Rf data
R_f值
2) rate of flow R_f
比移值R_f
3) Saponin R f
皂苷R_f
4) Rf graphs
R_f图谱
5) R_F-maltose
带R_F长链的麦芽糖
6) a value
a值
1.
Comparing a value with lgn,it was found out that there varying trend was consistent and the relation of the both was close.
通过对鲍店煤矿实际矿山地震分析,应用G-R关系,计算出矿山地震的G-R关系曲线,做出参数a、b值变化曲线,把b值变化与实际矿震中大震个数与小震个数比值进行比较,可以发现两者变化趋势相反,a值与lgn比较,变化一致,两者存在紧密的关系,证明a描述了矿山地震总体活动性水平。
2.
Introduces the construction,operation principle and method of determining A value of ZMJ type,by practice,proves reliable for safety and simple for operation,to meet the demands of design.
介绍了 ZMJ型 A值测定的结构、工作原理及 A值的测定方法 ,该系统可对如煤、岩、矸石等矿物质的截割强度值进行测定 ,为采煤机的滚筒设计提供理论参数。
3.
Results:In contrast with other nitrogen sources,Actinomyces naeslundii could be cultured by urea and higher final A value of the bacteria was obtained;at the range of pH=.
结果与其他口腔中常见氮源物质相比,尿素可以促进内氏放线菌生长,获得更高的A值;在临床牙菌斑能够检测到的pH4。
补充资料：17羟类固醇正常值
17羟类固醇正常值
取血及留24小时尿放射免疫法测定，其法定单位正常值：〓〓非孕时〓血〓248～580nmol/L〓〓〓〓〓〓尿〓5.5～22.1μmol/24h。
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