盐

After investigation of a series of synthetic routes of Cefepime, we determined the best route and researched each step of the synthetic process for the goal of cost-cut, simplifying operation procedure and improving yield.

以7-ACA为起始原料，经硅烷化保护氨基和羧基、碘代、置换、脱保护、成盐、缩合、成盐等六步反应，合成了目标化合物，总收率为21％（以7-ACA计）。产品结构经1H-NMR、MS确证。

A study was made of the properties of NR and the effect that natural rubber latex was conserved with feeble-acid-ammonium salt.

通过对弱酸铵盐性质的分析，探索弱酸铵盐对鲜天然胶乳的保存效果及其性能的影响。

The aim is to seek more effectively new method of separation and purification for rubidium salts, so as to provide basic scientific data for further application study.

本文作为国家自然科学基金资助项目（20171032）的一个组成部分，着重开展了铷盐在水溶液和非水溶液中的等温平衡互溶度、物化性质、相态结构与组成以及热力学性质等方面的研究，以期找到分离和纯化铷盐的新方法，为应用研究打下基础，并积累必备的基础科学数据。

In recent years, salt-mixed solvent system has become a very important system. And with the development of studies on rare alkali metal rubidium and cesium, it is significant to study the rubidium / cesium salt-mixed solvent system.

近年来，盐—混合溶剂已构成了一类重要的体系，且随着对重稀碱金属铷、铯的了解，人们发现研究铷、铯盐—混合溶剂体系有着极其重要的意义。

In orthogonal experiment(L934), We discovered that every combination included varies sources of carbon, sources of nitrogen, pH and salt concentration had great influence on P-solubilizing abilities of 4 PSB strains. Glucose was best source of carbon; all of them could use saccharose and Lx191 could use amylum.

经过对碳源、氮源、pH 值、盐浓度4 水平9 组合的正交试验，发现各种组合对溶磷菌溶磷量都有较大影响，葡萄糖是最好的碳源，氮源、pH 值、盐浓度对溶磷量、pH值、有机酸的影响在不同组合中各菌株表现不同。

Seedlings survived at 1. 5% NaCl was obtained from SP2 seeds and used as explants for tissue culture. A stable NaCl-tolerant cell line of sainfoin was selected by multi-step selections and also showed resistance to PEG stress.

自搭载后的红豆草第二代种子开始，得到能在1.5％NaCl上存活的幼苗，以此幼苗为外植体，通过组织培养筛选，得到耐盐系，耐盐系还表现出对PEG的交叉抗性。

The result shows that the changing law of saliferous reservoir parameters is a nonlinear relationship with several variables, and it is a very complicated process.

研究结果表明，高含盐油藏储层参数变化呈多元非线性函数关系，变化规律复杂；渗透率变化存在临界值，大于临界值时，渗透率随着驱替速度、驱替量和含盐量的增加而增大，小于临界值时，渗透率随着驱替速度、驱替量和含盐量的增加而减小；注入水性质会对参数变化过程有影响，而对最终变化结果无影响；盐的溶解是储层参数变化的根本原因，岩石颗粒的脱落和运移是储层参数变化的直接原因。

An electroporation procedure was developed for delivering foreign DNA to D. salina cells.

盐藻的遗传转化是对盐藻进行分子遗传学研究的必需技术。

Keywords salt dome;velocity field;subsalt structure;processing in time domain;ray

盐丘； 速度场；盐下构造；时间域处理；射线

In seismic exploration, subsurface salt dome , as a high-velocity geologic body, brought about a series of problems to ordinary processing in time domain and interpretation, for example, false image of subsalt structure and abnormal stack velocity field.

在地震勘探中，地下盐丘作为一个高速地质体会给常规时间域处理和解释带来一系列的问题，如盐下构造的假象和叠加速度场异常等。

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％。