查询词典 ring in

Water rings on the part of the inner surface just tangent with the impeller wheel, water ring coincides with the lower part of the inner surface contacts the top le**es (the le**es in the water in fact h**e a certain ring insertion depth).

水环的上部分内表面恰好与叶轮轮毂相切，水环的下部内表面刚好与叶片顶端接触（实际上叶片在水环内有一定的插入深度）。

Throw one's hat in the ring 宣布参与 Gerald didn't like any of the candidates that were running, so he decided to throw his own hat in the ring.

杰拉尔德不喜欢任何候选人，因此他决定自己参选。

A run flat tire wheel assembly having a run flat support member formed by a ring-shaped metal shell and rubbery elastic members in an inside cavity of a tire/rim, wherein the rubbery elastic member comprises a rubber composition including 100 parts by weight of a diene-based rubber and 0.1 to 5 parts by weight of cobalt acetyl acetonate and/or, as a reinforcing filler, 40 to 90 parts by weight of carbon black/silica in a ratio of 10/1 to 1/2 and 1 to 20% by weight based upon the weight of the silica, of a silane coupling agent, whereby the bondability between the ring-shaped metal shell and rubbery elastic members is improved.

一种轮胎车轮组装体，它是在轮胎/轮辋的内空洞部具有由环状金属壳和橡胶状弹性体形成的漏气保用支撑体的漏气保用轮胎车轮组装体，其中通过由下述的橡胶组合物来构成上述橡胶状弹性体，改良环状金属壳与橡胶状弹性体的粘结性，所述橡胶组合物含有：100重量份的二烯烃类橡胶；以及0.1～5重量份的乙酰基丙酮酸钴、及/或作为增强性填充剂，40～90重量份的以10/1～1/2的比例配合的炭黑/硅石，和相对于上述的硅石重量，1～20重量％的硅烷偶联剂。

Acylamino compounds from AD were synthesized by cleavage of A-ring through NaIO4/KMnO4 oxidation, ring closure by amination, oximation with hydroxylaminechloride in C-17 position, and reduction of oxime in C-17 position and substitution with substituted acylchloride and carboxylic acids.

本文以AD为起始原料，经过NaIO4/KMnO4氧化裂解、胺解环合、羟氨肟化反应，在甾体17位形成肟，并将肟还原成胺，与取代酰氯和有机羧酸反应，合成了15个酰胺化合物。

In the study of the contractile responses of isolated human small bronchi ring, by measured the contraction response of the bronchi ring from COPD patients to investigate the function of MR in the bronchoconstrictor and the effect of two kinds of selective antagonists.

本文对COPD患者支气管、肺组织的M受体及其亚型的数量和功能进行了研究。

The new GV preparation method we developed allowed the best visualization of chromatin distribution after Hoechst or CMA3 staining. Our results showed that GV chromatin configurations are different among different species, and thus, while chromatin condensed into a ring around the nucleolus in porcine and bovine oocytes, no such a ring was observed in caprine oocytes; Porcine oocytes were synchronized at GV1, goat oocytes at GV3n and bovine oocytes at GVf configurations before GVBD occurred, indicating that these configurations are progressive towards final maturation rather than atresia; Changes of chromatin configurations were associated with gene activity of transcription; GV chromatin configurations were affected by the environmental changes such as serum starvation and elevated temperature.

应用该技术对猪、山羊和牛不同大小、不同健康程度卵泡及体内和体外成熟过程中卵母细胞染色质构型的变化发现：1）不同动物卵母细胞染色质构型不同；猪和牛卵母细胞染色质围绕核仁凝集形成环，但山羊卵则没有此环。2）卵母细胞在GVBD之前都同步在某一染色质构型；猪同步在GV1，山羊GV3n，牛GVf，说明这些染色质构型代表着进行性变化。3）染色质构型的变化反映基因转录活动的变化。4）染色质构型受环境变化的影响。

The author found that the chromone ring could be cleaved at high temperature in PPA, and the change of the ratio of ring-opened product versus the target one with the change of reaction time and temperature was investigated in details.

我们采用了两条不同的合成路线合成了第Ⅳ类化合物，对部分反应条件进行了优化，在研究过程中发现了色酮化合物在高温下的开环反应及多聚磷酸的水解作用，并对前者进行了详细研究了，获得了不同反应温度和时间下未开环产物和开环产物的比例，得到了制备相应的未开环产物和开环产物的最佳反应条件。

The double bond in norbornene ring of TCPD was easily saturated at a low temperature, and an intermediate 12,13-dihydrotricyclopentadiene (12,13-DHTCPD) was formed. Higher temperature and hydrogen pressure were required for the saturation of remaining double bond in cyclopentene ring to generate a completely hydrogenated compound tetrahydrotricyclopentadiene.That is to say, the reaction occurred via the TCPD→12,13-DHTCPD→THTCPD route.

采用气质联用、红外光谱和核磁共振对加氢产物进行表征，发现在加氢反应中TCPD的降冰片烯双键首先被饱和，生成中间产物12，13-二氢三环戊二烯(12，13-DHTCPD)，残留的环戊烯双键需要在更高的温度和氢压下反应生成四氢三环戊二烯，即反应按照TCPD→12，13-DHTCPD→THTCPD的途径进行。

The bacterial, mammalian and plant cytochrome P450s involved in metabolism of herbicides are reviewed in this paper. The action modes of cytochrome P450s on herbicides including dealkylation, ring-methyl hydroxylation and aromatic ring hydroxylation etc are summarized.

本文综述了代谢除草剂的细菌、哺乳动物和植物细胞色素P450酶系，概述了细胞色素P450酶系参与除草剂代谢的作用方式：脱烷基化作用、环甲基化羟基化作用和芳环的羟基化作用等。

The more the number of hydroxyl substitution in phenyl ring, the better the ability of scavenging DPPH free radical. That is, trihydroxy is better than dihydroxy, and dihydroxy is better than monohydroxy. Moreover, when the polyhydroxy exists in phenyl ring and it is ortho-position or para-position, the ability of scavenging DPPH free radical is better too.

当苯甲醯基的苯环上羟基取代数量越多，其清除DPPH自由基的能力越好，三羟基效果优於双羟基、单羟基，双羟基效果优於单羟基；而苯甲醯基苯环上若为多羟基且羟基的位置为邻位或对位的关系时，其在清除DPPH自由基的能力较佳。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。