查询词典 Potassium

A process for preparation of the potassium methylate with the potassium-mercury amalgam and methanol using Fe/C as catalyst was provided.

本文主要研究了甲醇与钾汞齐在铁/碳催化剂作用下合成甲醇钾的工艺。

Oates acknowledges that potassium-sparing drugs may reduce coronary mortality through a mechanism unrelated to their prevention of potassium loss.

奥兹承认，钾保留药物可减少冠心病死亡率通过一种机制无关的预防钾的损失。

Soil moisture and potassium amount could improve potassium content of palisade tissue and spongy tissue.

土壤水分和钾用量能提高叶片栅栏组织和海绵组织的含钾量。

Inorganic matter: sodium perborate, potassium sulphate, magnesium sulfate, sodium sulfate, potassium nitrate, calcined soda, salt, sodium chlorate.

无机物：过硼酸钠、硫酸钾、硫酸镁、硫酸钠、硝酸钾、纯碱、精盐、氯酸钠、元明粉。

The effects of darkness on 14CO2 assimilation and photosynthate exported out of leaf in low-potassium sensitive veriaty of rice grown at two potassium level were studied.

在两种钾水平下，研究了暗处理对缺钾敏感品种的~(14)CO_2同化及同化产物输出的影响。

This paper studied the application of potassium picrate in fuse head production,the theoretic analysis and experimentation proved that fuse head made of potassium picrate was much better than that made of KClO_3-C-DDNP.

通过理论分析对比和部分试验论证，从感度、安全性、燃烧精度、安定性、产品性能等方面，探讨研究了将苦味酸钾用于电引火元件的引火药剂可行性。

Polyalcohol,preservative,metal ion and carbohydrate were experimented through single-factor tests,potassium sorbate,Na~+、K~+、Ca~(2+)、sucrose and lactose had great effects on the stability of mannanase M0710.Orthogonal experiments decided the optimal stabilizing agent were potassium sorbate 3%,sodium chloride 2%and sucrose 2%.

对突变酶M0710的稳定剂也做了初步研究，单一因素试验考察了多元醇类化合物、防腐剂、金属离子和糖类化合物等对目的酶稳定性的影响，其中山梨酸钾、Na~+、K~+、Ca~(2+)、蔗糖、乳糖对酶的稳定性有明显效果，通过正交试验最后确定效果最佳的液态酶M0710的稳定剂为山梨酸钟3%、氯化钠2%和蔗糖2%。

"The most important alums are those of potassium sulfate potassium alum, or potash alum, K2SO4XAl2(SO43X24H2O, ammonium sulfate, and sodium sulfate."

最重要的明矾为硫酸钾，又称「钾明矾」，分子式为K2SO4？Al2(SO4)3？24H2O；硫酸铵、硫酸钠。

From the perfusion experiments with isolated rabbit heart and vessels were obtained the follow- ing results:(1)Potassium antimony tartrate produced depression of the isolated rabbit heart,and this depressant action became more marked when the pH of the solution was raised from the original value of 5.4 to that of 7.2;(2)At the same pH levels,the cardiac action of the potassium salt was slightly stronger than that of the corresponding sodium salt;(3)The slight vase-dilator effect of potass- ium anti...

从离体器官的灌注实验得到下列结果：(1)酒石酸锑钾对离体兎心有抑制作用，将其pH 从5.4调整到7.2时，作用亦随以增加。(2)在相同 pH 时，酒石酸锑钾的心臓抑制作用较酒石酸锑钠略强。(3)酒石酸锑钾对离体兎耳血管的轻微扩张作用，系由于该药溶液的微酸性反应，当将药液 pH 调整至7后即无作用。(4)对于离体兎肺血管则不问 pH 为4.8或7，均产生轻微的血管收缩作用。

The main products 40,000 tons / year potassium carbonate, 60000 tons / year of potassium bicarbonate, 1,000 tons / year of 3,4 dichloroaniline, 6000 tons / year dimethyl sulfoxide, 2.5 thousand tons / year Xylitol, 1000 tons / year, such as high-purity hydrogen.

主要产品为4万吨/年碳酸钾，6万吨/年碳酸氢钾，1000吨/年3，4二氯苯胺，6000吨/年二甲基亚砜，2500吨/年木糖醇，1000吨/年高纯硫化氢等。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。