这就是为什么洋葱能使你的眼泪不自主的流下：洋葱内不同组分的化学物质混合在一起形成了一种不稳定的酸；
This is why cutting onions can make you cry: chemicals stored different compartments of the onion cell mix together to form an unstable acid;
在三岁以前，胃酸分泌处于低水平，对酸不稳定的药物，例如青霉素的吸收会增强。
Before then, the stomach has low levels of acid, and acid-labile drugs, such as the penicillins, show enhanced absorption.
涟钢CSP生产线于2004年2月份正式投产以来，钢中酸溶铝的控制不稳定，酸溶铝命中率低。
Since the CSP assembly line of Liangang on February, 2004 putting formally into production, the control of acid-soluble aluminium in steel wasn't stable, and hitting ratio was low.
由于核桃油脂中的不饱和脂肪酸含量高，与其它油脂相比，核桃油脂极不稳定。
On the other hand, the walnut oil is relatively unstable compared to other common plant oils, which can be ascribed to its high content of PUFA.
丙二烯环化氧化酶AOC能把一种不稳定的具有立体特异性的丙二烯环化物催化氧化成（9S，13S）-12-O-（10，15Z）-植物二烯酸，此植物二烯酸是茉莉酸的最终前体。
Allene oxide cyclase (AOC) catalyzes the stereospecific cyclization of an unstable allene oxide to (9S, 13S)-12-oxo-(10,15Z)-phytodienoic acid, which is the precursor next to jasmonic acid.
一种有毒的、不稳定的、极易挥发的有机酸，HOCN，用来制取氢酸盐或氢酸酯。
A poisonous, unstable, highly volatile organic acid, HOCN, used to prepare cyanates.
目的研究影响马来酸依那普利片在加速稳定性试验中有关物质含量不稳定的主要因素，并对工艺处方进行优化。
Objective to research the main factor which influence related substance content of enalapril maleate in accelerating the stability test, and optimize the craft prescription.
目的研究影响马来酸依那普利片在加速稳定性试验中有关物质含量不稳定的主要因素，并对工艺处方进行优化。
Objective to research the main factor which influence related substance content of enalapril maleate in accelerating the stability test, and optimize the craft prescription.
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