Skin is naturally slightly acidic and has a pH of 5.5.皮肤具有天然弱酸性，pH值为5.5。A pH test measures the acidity or alkalinity of a substance.pH值测试可检测物质的酸碱度。Pure water is neutral with a pH of 7.纯水是中性的，酸碱度为7。...
The � � - PGA hydrogel swelled on the high pH region ( pH 9.0 ).在 pH 值 9.0时 具有较强的溶胀能力.The C level in acyanotic CHD with PH group correlated positively with pulmonary pressure ( P < 0.05 ).肺动脉压力与C水平呈显著正相关 ( P...
Macaulay Culkin receives his first screen kiss from cutesy 11-year-old Anna Chlumsky.麦考利·卡尔金的银幕初吻来自于忸怩作态的11岁童星安娜·克鲁姆斯基。Anna Ford recently hit out at the male clique which she believes holds back women in television.最近，安娜...
将负片记录之一放入投影器的物平面内.Place one of the negative records in the projector object plane.能使用测径规, 千分尺, 测量仪表,轮廓测定投影器, 块规.Ability to use Callipers, Micrometers , Gauges, Profile Projector, Gauge Block.切口边缘被投影器放大了,目的是方便测量和观察.The cu...
The technique consists of injecting healthy cells into the weakened muscles.该技术是把健康细胞注射到衰弱的肌肉里面。Basically it was a fine performance I have only minor quibbles to make about her technique.表演基本上很精彩--我只对她的技巧稍有意见.Of course t...