The principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form.

鐵礦的主要形式稀缺资源网禁美女，由氧化鐵組成，呈晶體狀，以紅色土狀出現(xiàn)。

A change of phase, however, is a more fundamental change of Physical form, as from a liquid to a vapor, or a change from one crystalline form to another.

然而国产AV。，相位的變化是指物理形態(tài)的更為基本的變化，如從液體變?yōu)闅怏w亚洲色欲综合网页在线观看，或從一種晶體變?yōu)榱硪环N晶體精品久久亚洲一区二区欧美。

No entire nitrendipine crystals were observed visually in SEM photos. The results of X-ray diffraction and differential scanning calorimetry analysis indicated that the crystalline form of nitrendipine was highly dispersed in microspheres, so as amorphous state. The drug release rate of microspheres could be controlled with adjusting the ratio of solid dispersion carriers and retarding agents formulated. The agitation speed and temperature of the preparation process have distinct effect on micromeritic properties of microspheres. The release profiles of the microspheres were mainly affected by the stirring rate of paddle, the concentration of SDS and pH of dissolution medium. Cooling speed and time, however, have no evident influence on the drug release rate of the microspheres. The dissolution data showed that the mechanism of drug release from microsphers was mainly diffusion-controlled. The incorporation efficiencies of 3 batches sample were exceed 96. 8％, which implied that the current method was suitable for design sustained-release dosage form for poorly water-soluble drug.

在掃描電子顯微鏡下觀察，在微球內(nèi)外未發(fā)現(xiàn)尼群地平的完整結(jié)晶欧美一卡二卡视频在线观看，X-射線粉末衍射和差示掃描量熱試驗(yàn)結(jié)果也顯示jiujiuse在线，尼群地平已經(jīng)被高度分散在微球中；微球的釋藥速度可通過(guò)調(diào)整處方中固體分散體載體和阻滯劑的比例控制色视频免费看网站；制備溫度和攪拌速度對(duì)微球的質(zhì)量影響較大国产99精品免费观看老女人；溶出儀的攪拌速度日韩综合小视频，釋放介質(zhì)的濃度和pH對(duì)微球的釋放有較大的影響AV网站免费看；制備過(guò)程中的冷卻速度和冷卻時(shí)間對(duì)微球的釋放行為影響不很明顯；方程擬合的結(jié)果表明緩釋微球的釋藥行為符合擴(kuò)散機(jī)制爽爽爽午夜福利试看；測(cè)定三批微球樣品的包封率均在96.8％以上717理论片在线观看无码，表明該法適合于制備難溶性藥物的緩釋微球。

crystal nucleus：晶芽

晶形 crystal form | 晶芽 crystal nucleus | 晶質(zhì) crystalline sabstance