常見例句A rather more complex case is that of steric isomerism. 更復(fù)雜的情形是立體異構(gòu)問題。A multi-center fragmentation is governed by steric factors. 多中心斷裂受到位阻因素的控制。Hyperconjugation not steric repulsion leads to the staggered s ... 而不是老的教科書提到的位阻效應(yīng)。Severe steric effects at the reactive carbon would impede the substitution. 大的立體效應(yīng)阻止在碳上的取代。Macromolecules cannot approach the ligand owing to steric hindrance of the matrix. 由于載體的立體位阻的關(guān)系,大分子化合物不能接觸到配基。METHODS the pharmacokinetics of EPC and HEPC sterically stabilized liposomes (EPC-SSL, and HEPC-SSL) were studied by HPLC. 方法用高效液相色譜法研究EPC和HEPC長循環(huán)阿霉素脂質(zhì)體在大鼠體內(nèi)的藥物動力學(xué)。 返回 sterically