查询词典 ether

Thermodynamic analysis is carried out for the compound reaction system of diethyl ether and methanol from synthesis gas. The equilibrium composition and the selectivities in equilibrium are calculated for different initial compositions, temperature and pressure.

确定了合成气直接合成二甲醚与甲醇的复合反应体系独立方程数，并进行了热力学计算与分析，计算了不同初始组成、温度、压力下复合反应体系的平衡组成及平衡条件下二甲醚与甲醇的选择率。

After removal of diethyl ether with a stream of nitrogen, the residue was re-dissolved in 1 mL of mobile phase for HPLC injection.

该方法采用C18柱进行分离，以冰乙酸-四氢呋喃-甲醇-水(体积比为1∶2∶10∶87)为流动相，以香草酸为内标，于264 nm处进行紫外检测。

Recently Kuang reported a recoverable and reusable free ligand that could be recovered by precipitation upon addition a little of diethyl ether.

本文所说的小分子并不是通常人们所说的NO、CO和CO_2等小分子，而是相对于大分子而言，这些手性配体是小分子(FW＜1000)。

The hydrochloride salt can be prepared by dissolving the oil in 10x the volume of diethyl ether and gassing the solution with dry HCl gas until no more precipitate forms.

至于盐酸盐能这样来制备：把上述液体溶解在10倍体积的乙醚中，通入干燥的盐酸气体，直到液体的沉淀不再增加为止。

The epoxy-based second-order NLO polymer was synthesized through the coupling reaction between p -nitrophenyl diazonium salt and an epoxy-based precursor polymer,which was prepared by the polycondensation of diglycidyl ether of bisphenol-A and aniline Bi-component (BPAN-lA-NT/M2OS) thin films were prepared by spin-coating from the solution of BPAN-lA-NT mixed with certain amount of a cross linking agent M2OS.

通过双酚A-二与苯胺的逐步聚合反应合成环氧树脂类先驱聚合物BPAN ，进一步通过先驱聚合物的后重氮偶合反应，制备了侧链带偶氮生色团的二阶非线性光学聚合物BPAN-1A-NT。

There comes a time in every wormholes life when it will collapse into the ether.

现在每个虫生活将陷入苍穹。

Archaean cell walls lack murein, a common component of bacterial cell walls, and their lipids have ether links rather than ester links.

古细菌的细胞壁缺乏细菌细胞壁组成的普遍物质-胞壁质，其连接是醚连接而不是酯连接。

Acetic acid soluble in water, alcohol, ether and carbon tetrachloride, insoluble in carbon disulfide.

乙酸易溶于水、醇、醚和四氯化碳，不溶于二硫化碳。

Ethyl tert butyl ether is synthesized from ethanol and tert butyl alcohol by reaction distillation.

以乙醇和叔丁醇为反应物，采用反应精馏法合成了乙基叔丁基醚。

For other c.s. moving relatively to the ether-sea it should depend on the direction in which we are measuring.

在其他对以太海运动的坐标系中，光速则与我们进行测量的方向有关。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。