查询词典 formate

Synthesis of methyl formate by carbonylation of methanol with only sodium methoxide as catalyst exists some shortages, such as low activity, rapid loss of activity and short catalyst life.

以单一甲醇钠作为催化剂通过甲醇羰基合成甲酸甲酯，存在催化剂活性不高、易失活、寿命短等问题。

Lithium formate monohydrate crystal ; holographic microphotography ; boundary layer ; interface supersaturation

一水甲酸锂单晶；全息显微术；边界层；界面过饱和度

Using holographic phase-contrast interferometric microphotography, the solute concentration distribution was measured during lithium formate monohydrate crystal growth at 312.25K in-situ, and the interface supersaturations were calculated.

本文采用激光全息相衬干涉显微术研究了有机非线性光学晶体一水甲酸锂晶体的生长，计算了晶体生长的界面过饱和度。

The selective linear dimerization of isoprene to formate myrcene in a single phase catalyst solution prepared by mixing two metals, amine, solvent and a small content of isoprene was studied.

摘 要：研究了异戊二烯在两种金属催化作用下均相线性二聚生成月桂烯的影响因素，得到优惠工艺条件：反应温度 13℃，催化剂∶异戊二烯=0 。0 5∶1 0 ，胺∶异戊二烯=0 。0 7∶1.0。

Its biological characteristic express two ways: increase wall of micrangium"s permeability and conjugate vascular endothelial cell"s specificreceptor, anxo-act vascular endothelial cell cleavage and proliferation, so lead to formate neogenetic vascular.

VEGF的生物学特性主要表现在两方面：增加微血管的通透性和特异性的与血管内皮细胞受体结合，促进血管内皮细胞的分裂和增殖，进而导致新生血管的生成。

The above-mentioned results illustrate: the mechanism of pseudobulbar palsy treated with nape needle was possible about brain plasticity after stroke, for example, it could relieve spasm of muscle, recovery muscle strength, facilitate pharyngeal muscle to move coordinated; formate long term protention with uninterrupt mechamism stimulations , reconstructe damaged reflex arch ; accelerate blood circulation, ameliorate ischemia and anoxia; influence metabolism of angeogenesis growth factors, improve angiogenesis and protect neurons.

项针治疗脑卒中后假性延髓麻痹的疗效肯定，其机理可能主要与缓解肌肉痉挛，恢复肌力，促进咽部肌肉的协调运动；对病变部位长期不断的机械刺激，形成长期强化作用，使受损反射弧得以重建；促进血液循环，改善病变局部缺血缺氧状态；影响血管生成生长因子的代谢，促进血管生成，保护神经元等，脑卒中后脑可塑性改变有关。

Compared with other flocculants, the polymeric ferric sulfate has much better performance and characteristics, such as better adsorption, bridge erection, flocculation, floc formate fast, not easy to breaking, better repolymerization and weak corrosion. So it was widely used in the wastewater purification and treatment which contains industrial wastewater, urban sewage, water for industrial use and potable water etc.

与其它的絮凝剂相比较，聚合硫酸铁不但具有较强的吸附、架桥、絮凝沉淀性能，而且在水处理过程中有生成絮体速度快、絮体不易破碎、重聚性能好、腐蚀性小等特点，因此广泛用于工业废水、城市污水、工业用水以及生活饮用水等的净化处理。

Based on increasing resistance of stored grain insect pest to chemicals and decreasing fumigants, the effects of ethyl formate on eggs, early larvae, late larvae, pupae and adults of Sitophilus oryzae were systematically studied with the sealed jar fumigation method under different conditions.

针对储粮害虫抗药性日趋严重、粮食熏蒸剂品种越来越少的现状，采用密闭熏蒸法，系统研究甲酸乙酯在不同条件下对米象Sitophilusoryzae卵、低龄幼虫、高龄幼虫、蛹以及成虫的致死作用。

The eluate was prepared by dissolving am- monium formate 6.3 g and octanen sulfoacid sodium 1.0 g in 700 mL water(pH 3.8 adjusted with formic acid)and subsequently diluted with water to 1000 mL.

结果：在本色谱条件下腺苷蛋氨酸与辅料、溶剂峰及其有关物质的分离度符合要求，在200～600μg·mL~(-1)范围内线性良好(r=0.9998)。回收率为99.61%～99.98%，RSD为0.23%～1.3%。

The performance of solid superstrong acid catalyst for hydrolysis ofmethy1 formate is investigated under the conditions of various flow-rate and temperature.

固体超强酸作甲酸甲酯水解制甲酸的催化剂。研究催化剂、进料速度、反应温度对甲酸甲酯水解转化率和对甲酸出口浓度的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。