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- conjugated unsaturated bonds 共轭不饱和键
- The extending of the conjugated unsaturated system after thermal treatment is most possibly the elemental reason for the lignin discoloration. 刺槐木素受热处理后结构中共轭体系的增大是木材木素变色的重要原因。
- Of or relating to long-chain carbon compounds, especially fats, having many unsaturated bonds. 多不饱和的具有许多不饱和键的长键化合物的,或与之关的,尤指脂肪
- Unsaturated bonds are thus reconfigured, molecular architecture is disrupted, and breakage of the envelope ensues. 以上病毒物质的不饱和键因此便要重整结构,分子构造也就受到破坏,接著便发生包膜断裂。
- Hydrogenation conerts the unsaturated bonds in the oil into saturated bonds, creating a solid, spreadable fat with increased shelf life. 氢化将油脂中的不饱和键变为饱和键,得到固态、容易涂抹的脂肪,且其产品有较长货架期。
- However, the divalent ions show only weak influences while hydrocarbon chain possesses one unsaturated bond in the fatty acid. 当碳氢链为具有一个不饱和键的脂肪酸时,金属离子的影响较小。
- Photooxy-degradation(aging) will happen to polymer when they accept UV-irradiation of the sun especially weak bond or unsaturated bond as diolefine exist in macromolecular chain. 聚合物尤其是存在弱链键和双烯结构的大分子链,在接受太阳紫外线辐射后,易发生光诱发的氧化降解反应(老化)。
- Dialkyl quaternary ammonium salts can be used as fabric softeners with high performance, their biodegradation can be improved by inducing unsaturated bond into their alkyl chain. 摘要双烷基季铵盐类产品是一种性能优良的织物柔软剂,如果在烷基链中引入不饱和键,就会提高其生物降解性。
- Conjugated unsaturation of abietic resin acids can be removed through catalytic hydrogenation to overcome the shortcomings of oxidation and color degradation in rosin. 将松香催化加氢可去除枞酸型树脂酸的共轭不饱和性,克服其易于氧化变色的缺点。综述了40多年来国内外对松香催化加氢反应的研究进展。
- The sulfonating reaction was found on the unsaturation bonds of polybutadiene basing on the research of dynamics of the sulfonating action and FTIR analysis of reacted products. 通过研究磺化反应的动力学和对磺化产物的分析测试,提出磺化发生在聚丁二烯的双键上新观点。
- (of long-chain carbon compounds especially fats) having many unsaturated bonds (指长链碳化合物,特别是指脂)有许多未饱和的化合物
- (of long-chain carbon compounds especially fats) having many unsaturated bonds. (指长链碳化合物,特别是指脂)有许多未饱和的化合物。
- Roger paid the bill by cashing in some bonds. 罗杰卖掉一些债券来付账。
- You need a strong adhesive to bond wood to metal. 需要强力胶才能把木料粘在金属上。
- How much interest will the bonds bear? 这些公债会生多少的利息呢?
- The four and a half per cent bonds are in request. 利息四厘五的债券需求量大。
- This glue makes a good firm bond. 这种胶水粘得很结实。
- Common tastes form a bond between the two men. 共同的爱好使两人结交为朋友。
- It takes courage to break the bonds of convention. 打破传统的束缚需要勇气。
- He put bonds in pledge for a loan. 他将债券作抵押以取得贷款。