不可逆性

The nautre of ester bond and sedimentary medium condition control the distribution pattern of organic acid ester in strong reductional environment and water-washed oxidized crude oils. The former features higher contents both of 9, 11-Octadecadienoic acid, methyl ester and Hexadecanoic acid, showing the non-reversible hydrolysis reaction of ester bond in condition of basicity; the later features higher contents of Hexadecanoic acid and Octadeanoic acid, and lower contents of nonsaturated and side-chain acid ester, indicating the reversible hydrolysis reaction of ester bond in acid condition.

酯键的化学性质和沉积环境中介质条件，决定了强还原咸水盐湖相和淡水湖沼相经水洗氧化次生变化的原油有机酸酯的分布特征，前者9，11-十八二烯酸甲酯与正十六烷酸为主，反映酯键在碱性条件的不可逆水解过程，后者以正十六烷酸和正十八烷酸为主，烯酸和支链酸很少，反映酯键的酸性条件的可逆性水解，烯酸经氧化向正十八烷酸，正十六烷酸转化。

The effect of reversible bullouskeratopathy treated with fresh amniotic membrane transplantation is certain, but unreversible bullouskeratopathy not certain.

羊膜移植术为治疗可逆性大泡性角膜病变的有效方法，治疗不可逆大泡性角膜病变效果差。

It can form reversible gel synergism with xanthan or carrageenan and also can form irreversible elastic and tough gel in alkaline solution.

魔芋粉溶于水后能形成非常粘稠的溶胶，与黄原胶或卡拉胶互作能形成可逆性凝胶，与稀碱液作用也能形成坚实的不可逆凝胶。

DNA methylation is a kind of ordinary pheonemena in eukaryote.

DNA甲基化是高等真核生物中经常发生的现象，这种表观遗传学改变常发生在基因的启动子区域，并且不改变DNA序列和遗传密码，具有可逆性，在基因转录调控中发挥重要作用。

Objective To analyzes the clinical effect of the service menu scheme for chronic obstructive pulmonary disease in local communities by the method of "winter disease cured in summer" in traditional Chinese medicine.

慢性阻塞性肺疾病是具有不完全可逆性气流受限特征的疾病，与慢性支气管炎和肺气肿密切相关，有病情易反复、进行性加重的临床特点。

RESULTS: We found that (1) tramadol, similar to the well-knownTRPV1 agonist, capsaicin, significantly increased [Ca2+] i ofTRPV1-CHO cells in a concentration-dependent fashion;(2) itseffect was reversibly prevented by the TRPV1 antagonist capsazepine;(3) repeated application of tramadol resulted in marked tachyphylaxis;and (4) tramadol did not modify [Ca2+] i in control CHO cells.

结果：我们发现以下结果：（1）曲马多和辣椒素这个熟知的辣椒素受体激动剂一样，呈浓度依赖性地显著增加 CHO 细胞 TRPV1内流钙离子；（2）该作用可以被 TRPV1拮抗剂 capsazepine 可逆性地阻止；（3）重复给予曲马多会造成显著的快速耐药性；（4）曲马多不修饰钙对照 CHO 细胞中的内流钙离子。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。