The influences of catalyst, solvent, temperature and raw material on the yield of TPP are investigated. The yield of TPP increases from 30.0% to 49.5%.
研究了催化剂、溶剂、温度、原料等因素对四苯基卟啉收率的影响，收率由30.0％提高到49.5％。
Transportation scheduling system of a cement raw material quarry is a complicated system involved with the yield, quality and transportation cost of raw limestone.
水泥原料矿山运输调度系统是一个涉及到产量、质量、成本的复杂系统。
The concepts of raw material utilization ratio, product yield ratio, product qualification ratio as well as the importance for the enterprise are discussed.
本文阐述了肉制品生产中原料利用率、产品出品率和产品合格率的概念及其在企业中的重要性。
Efficient utilization on raw material, equipment and technological operation can realize its high quality, high yield, low consumption and improve economic performance.
从原料、设备、工艺操作上提高电能的有效利用，达到硅铁生产优质、高产、低耗，提高经济效益。
The development of the automatic cutting planter provides a new machine for cutting planting operation of high yield raw material forest and improves the level of forest equipment.
链盘式投苗全自动插条机的研制，可为丰产原料林插条作业提供一种新机型，以提高林业机械化装备整体水平。
These compounds were prepared using nicotinic acid as primal raw material, and improve upon the process of reaction to enhance the yield.
以烟酸为最初原料合成上述化合物，对反应过程进行了改进，产率均有所提高。
With the raw material of waxy corn, this test applies the technology of wet milling extraction to get pure waxy corn starch with high starch yield and fine quality.
以糯玉米为原料，采用湿法提取淀粉工艺，制得淀粉得率高、质量优质的纯净糯玉米淀粉。
Phenoxyacetic acid was synthesized with phenol and chloroacetic acid as raw material and tetrabutylammonium iodide as catalyst, the yield can reach 96.2%under the optimun conditions.
以苯酚和氯乙酸为原料，四丁基碘化铵为催化剂合成了苯氧乙酸，收率达96 2 %。
The effects of mole ratio of raw material, amount of catalyst, reaction temperature and time on the yield are investigated. The most favorable reaction conditions is obtained.
通过考察原料摩尔比、催化剂用量、加料温度、反应温度和反应时间等因素对收率的影响，得到了最佳反应条件。
Can be used in DuoZhong raw material with novel structure, advanced technology, extrusion pressure, high yield, the characteristics of high vacuum degree, adopt pneumatic clutch to control.
可适用于多种原料，具有结构新颖、技术先进、挤出压力大、产量高、真空度高的特点，采用气动离合器控制。
The effects of raw material composition, reaction temperature and solvent on the yield of DDATAC were studied.
研究了原料配比、反应温度和溶剂等因素对DDATAC收率的影响。
The synthesis method has the advantages of simple operation, easy obtainment of the raw material, low cost and high yield.
合成方法具有操作简便、原料易得、成本低、收率较高的优点。
The effect of methanol content in the raw material on the yield of TDC is investigated.
对反应原料中甲醇的含量对甲苯2,4二氨基甲酸甲酯收率的影响进行了计算。
The advantages of this invention are the raw material is easy to get, the operation is simple, the yield is high.
本发明方法的优点是原料易得、操作简单，产率高。
The invention has the advantages of abundant raw material, low cost and high yield, and can directly obtain monobromo aromatic ring without separation and purification;
本发明的优点是：原料易得，成本低、收率高，无需分离纯化即可直接制得单溴芳环产物；
The invention has the advantages of abundant raw material, low cost and high yield, and can directly obtain monobromo aromatic ring without separation and purification;
本发明的优点是：原料易得，成本低、收率高，无需分离纯化即可直接制得单溴芳环产物；
应用推荐