查询词典 bond

Know to all, the way to bond disjunct advertising poster surfaces, we usually use mucilage, such as the 502 glue to join them together in one, but the means have a lot of disadvantages, such as:(1)Almost all of these kinds of bond are harmful on human health;(2)When work, the operation is slow and is not too satisfied in strength with the glue, to get a good strength, usually we must proceed a special handling, such as whet the surface to make the surface not smoothed, so it may cost more workers;(3)The air temperature may influence the stick strength, in low temperature environment, the bond effect maybe bad.

知道所有的方式，债券间断表面的广告海报，我们通常使用粘胶，如502胶加入他们在一起，但手段有很多缺点，如：（ 1 ）几乎所有这些种债券是有害于人类健康；（ 2 ）当工作，行动是缓慢的，而不是太满意的强度与胶水，得到良好的强度，通常我们必须特别处理，如刺激的表面，使表面不光滑，因此它可能花费更多的工人；（ 3 ）空气温度可能会影响到坚持的力量，在低温环境中，债券可能坏的影响。

A chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond .

一种化学键：由两个负电原子及其间的氢原子组成，其中一边是共价键，另一边是离子键。

Each starch reagent has its own mode of action on mineral surface, such as primary starch mainly by hydrogen bond, cationic starch by the co-action of hydrogen bond and electrostatic force (for minerals with negative charge on its surface), while carboxymethyl starch, hydroxamic acid starch and dialdehyde starch principally by chemical force accompanied with hydrogen bond and electrostatic force in part. Such chemical forces ensure the close adsorption of reagent on diaspore surface and enforces the hydrophilic of mineral surface. Also the branched chain enable the starch to cover the collector adsorbed on mineral surface, so as to depress diaspore furthermore.

不同淀粉药剂在矿物表面表现不同作用，原淀粉主要是氢键的作用，阳离子淀粉是氢键和静电力的共同作用，羧甲基淀粉、羟肟酸淀粉和双醛淀粉离子性药剂与矿物间的作用除了氢键、静电力外，更重要的是与矿物表面金属离子间产生的化学作用，使药剂能牢固地吸附在一水硬铝石矿物表面，增加矿物表面的亲水性，同时，淀粉支链结构的存在，使它能够掩盖吸附的捕收剂，达到抑制一水硬铝石的目的。

May be an electrovalent bond , covalent bond and metallic bond mark like chemistry key.

化学键一般可分为离子键、共价键和金属键。

Gemini surfactants are novel surfactant with especial molecule structure, which are made up of at least two hydrophilic groups and two hydrophobic groups. They are connected at the level of the head groups by a spacer groups through chemical bond (covalent bond or electrovalent bond).

孪连表面活性剂是一种结构较为特殊的新型表面活性剂，其分子中至少含有两个亲水基和两条疏水链，在其亲水基或靠近亲水基处，由联接基团通过化学键联接在一起。

It is found that from bond population calculation results, the bonding strength of Al—O bond of faces (011) and (011) of gibbsite are stronger than that of face (001). If the proportion of unfold of (001) surface is decreased and the proportion of unfold of (011) and (011) surfaces is increased to same possible extend, the bonding strength of Al—O bond of gibbsite would be more strong.

键布居分析结果表明，整体上氢氧化铝的(001)面的Al—O键的结合力不强，(011)和(110)面的Al—O键的平均键布居数较高，结合力较强；若小幅度降低(001)面的显露比例，并使(110)和(011)面较多显露，就有可能提高氢氧化铝表面的Al—O键的结合力。

Particularly in theβsubunit, the rotation of the distal HisE7 (63) imidazole ring about the Cα-Cγ bond and its large distance from the haem plane make a hydrogen bond possible between E7 Nε and the terminal binding oxygen atom, while in human oxyHb this hydrogen bond either does not exist or is only very weak.

这个氢键在人oxyHb分子中要么不存在要么很弱。

Accordingly, in order to provide insight into the function of coenzyme B12 and the mechanism of enzymatic catalysis, it is necessary to investigate the conformational change of corrin ring accompa-nying the Co-C bond homolysis, the Co-C bond dissociation energy, and the factors influencing the Co-C bond strength.

激光诱导时间分辨光声量热法(laser-induced optoacoustic calorimetry，简称LIOAC；或time-resolved photoacoustic calorimetry，简称PAC)是在纳秒至微秒时间量级上直接定量检测激光诱导光化学反应及光生化反应过程中能量传递以及有关反应分子体积变化的新方法。

The result indicates that the hyperconjugation effect from lone pairs on nitrogen atoms to germinal N-N bonds can play an important role in the N-N bond length. The N-N bond length displays reverse dependence on the charge density in bond critical points obtained from AIM.

NBO分析表明N原子孤对电子到相邻的氮氮键的超共轭作用是影响氮氮键长变化的主要因素，AIM计算的氮氮键的键临界点电荷密度与键长呈反比关系。

As bond investment management managing complex than equity investments, bond fund management fees are relatively low, our country's bond funds income stability.

由于债券投资管理不如股票投资管理复杂，因此债券基金的管理费也相对较低，目前我国债券型基金的收益稳定。

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％。