It showed that L-Glutamic acids could link each other to form a long chain which contains many hydrophilic groups by salt linkages and hydrogen bonds in aqueous medium.
用紫外-可见光度法、共振散射光谱法探讨了在弱酸性介质中,碱性染料维多利亚绿S与酸性氨基酸L-谷氨酸相互作用机理,认为L-谷氨酸分子通过盐键和氢键相互结合成含有亲水性基团的分子链,这条分子链可以将维多利亚绿S的疏水性基团包在里面,使其亲水性基团朝外,并通过盐键和氢键与维多利亚绿S作用形成大的聚合体,其聚合体体积远远大于染料自身聚集体的体积,使溶液颜色变深,分子光谱吸收值增加。
At pH ≤2, amphoteric resins play a role as strong base resins; the absorption of electrolytes takes place according to the anion exchange mechanism, At pH2～7, the molecular sorption by breaking of innersalt bonds increases gradually.
主要结果是ｐＨ≤２时，以离子交换为主，ｐＨ２→７时由于内盐键破裂而等当量吸附阴、阳离子作用逐步增强，ｐＨ≥７时则以内盐键破裂而吸附离子为主，在有多种反离子存在时则同时发生离子交换作用，在这种ｐＨ范围的离子选择性显著大于在ｐＨ７以下范围。
The results showed that the leaching of Hg is very low in CBPC, CBPC matrix can effectively immobilize Hg-contaminated waste in a dense matrix of the ceramic by physical encapculation and chemical stabilization.
本研究以实现汞废物的固化稳定化为目标,以CBPC——化学键磷酸盐陶瓷为固化基质材料,对含汞废物进行处理研究,探索了稳定剂硫化物、添加物S微粉对CBPC基质的影响。
Application Example of Cold Shrinkage and Thermal Expansion Type Fitting for Large Key;
大型键冷缩热胀式装配方式的应用实例
Translating XML to Normal Relational Schema Based on XML Key;
基于键的XML模式到关系模式的规范化转换
A Method for Defining Key of CWM Multidimensional Metamodel;
CWM多维元模型中键的定义方法
glucosidic linkage
糖苷键[合],苷键[合]
Chemical bond mainly includes electrovalent bonds, covalent bonds, and metalic bonds.
化学键主要有离子键、共价键、金属键。
six-keyway broach
六键拉刀, 花键拉刀
the keyboard has standard, alphanumeric keys
键盘有了标准的字母键，
Tangential keys and keyways
GB/T1974-1980切向键及其键槽
alternate key
替代关键字,备用关键字
A stringed keyboard instrument, such as a harpsichord.
键盘弦乐器，如大键琴
&Keystroke mapping:
键盘映射(&K):
The keyboard is equipped with a guard board.
包括键盘、键帽，其键盘上安装有键盘护板。
In keypad locked mode, press LEFT soft key and press # key .
在键盘锁定模式下，按左软键和#键解锁。
Semi-circular (Woodruff) keys--Dimensions of cross sections and keyways
GB/T1098-1979半圆键键和键槽的剖面尺寸
Parallel keys--Dimensions of cross sections and keyways
GB/T1095-1979平键键和键槽的剖面尺寸
Thin flat keys--Cross section dimensions and keyways
GB/T1566-1979薄型平键键和键槽的剖面尺寸
Taper keys--Cross section dimensions of keys and keyways
GB/T1563-1979楔键键和键槽的剖面尺寸
frequency shift keying
键控频移频移键控频移键位
The key on a typewriter or computer keyboard used for backspacing.
退格键打字机或计算机键盘上用于退格的键
Operational Guidelines for School Official Cites Use : Key box shooting ↑ bond jumping, driving the key direction.
操作指南：空格键射击，↑键跳跃，方向键开车。
Blind keyboard: Typesetting keyboard that does not provide a visual record or a hard copy of the keying.
盲键盘:排字用键盘 。按键后，并无萤幕或硬卷记录。