查询词典 sulfate

Magnesium sulfate has significant genotoxicity to Vicia faba root tip cells.

硫酸镁对蚕豆根尖细胞具有明显的遗传毒性效应。

As the increase of the concentration of magnesium sulfate and time, the micronucleus and the chromosomal aberration of Vicia faba root tip cells increased first and then decreased.

且随着硫酸镁溶液浓度的升高和处理时间的延长，蚕豆根尖细胞的微核率和染色体畸变率均呈先上升后下降的趋势。

Ammonia and nitrate, ferrous ion, sulfide, various gases and organic acids are sequentially formed, corresponding to the activities of aerobic and facultatively anaerobic bacteria, sulfate-reducing bacteria, and methane-producing bacteria with the development of reduction reactions.

在还原过程中，随着好氧细菌、兼性厌氧细菌、硫酸还原菌和甲烷菌的活动，相继形成氨、硝酸根离子、亚铁离子、硫化物、气体物质及有机酸。

Abstract］Objective: To assess the feasibility of ferric sulfate as a pulpotomy agent in primary teeth.

摘要］ 目的：探讨硫酸铁溶液作为儿童磨牙牙髓切断术药物的可行性。

Experimental results show that esterification reaction proceeds effectively at 200℃ with ferric sulfate as catalyst.

论文研究选用硫酸铁作酯化反应的催化剂，在醇酸摩尔比10：1.0，酯化温度200℃，酯化时间2小时。

Polymeric ferric sulfate was prepared by pyrite cinder in this paper.

本文进行了用硫铁矿烧渣制备聚合硫酸铁的实验研究。

Inhibitors including sodium dodecyl sulfate, boric acid, sulfur, and potassium fluoroborate (KBF4) are added to compare the surface quality of AZ91 casting Experimental results show that adding sulfur in green sand obtained AZ91sand castings with satisfied surface quality and adding KBF4 in green sand produced sand castings with best mechanical properties.

实验结果显示添加硫磺，可得到较佳模砂性质且有效控制产生较好的金属表面品质，添加氟硼酸钾有较佳机械性质。

Glauberite is a main ore mineral in sodium sulfate deposits widely distributed in modern salt lakes and Meso- and Cenozoic salt-bearing series.

钙芒硝是硫酸钠矿床的主要矿石矿物。它在现代盐湖，尤其是在中新生代含盐系有广泛的产出。

Existing large-scale enterprises glauberite ore two domestic advanced production lines of four sets of Sodium Sulfate, Sodium six production lines, two sets of alkaline protease production lines, pharmaceutical production lines mirabilite set.

企业现有大型钙芒硝矿两座，国内先进的元明粉生产线四套，硫化钠生产线六套，碱性蛋白酶生产线两套，药用芒硝生产线一套。

The origin of glauberite attributes to various processes, including(1) direct crysllization from sulphate solution;(2) substitution of glauberite for gypsum;(3) transformation from hydrous glauberite; and(4) ion exchange between sodium sulfate and calcium-bearing mud.

钙芒硝的成因可归纳为：(1)直接从硫酸盐溶液晶出；(2)交代石膏成因；(3)从卤水中先沉积水钙芒硝后脱水变为钙芒硝；(4)硫酸钠溶液与含钙淤泥之间发生离子交换而生成。与菱镁矿紧密共生产出于海相地层之钙芒硝很可能形成于潮坪盐湖环境。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。