查询词典 potassium bichromate

Favorable nutrient and taste of muskmelon with medium culture were achieved when potassium level was adjusted to 240 mg/L The muskmelon macroelement absorption ratio of N, P, K, Ca, Mg was 28:5:40:21:6 under this potassium level at harvest.

生产实践中，温室基质栽培网纹甜瓜营养液中的最适钾素水平应为240 mg/L，此时植株对N， P， K， Ca， Mg的吸收比例为

A white mineral consisting of magnesium sulphate and potassium chloride; a source of potassium salts; used as a fertilizer .

一种白色矿物，由硫酸镁和氯化钾组成，是钾盐的来源，用作肥料。

The potassium permanganate is one kind of important manganese compound,its preparation is mainly melts the oxo-process with the solid phase alkali at present,take the potassium manganate as the intermediary to make.

是化学方面的，写论文用。急用！问题补充：下面这段：高锰酸钾是一种重要的锰的化合物，它的制备目前主要是用固相碱熔氧化法，以锰酸钾为中间产物来制备。

The invention discloses a method for measuring seawater chemical oxygen demand by photometry, wherein the seawater exemplar is first pre-processed, then using the basic potassium hypermanganate as reaction system, the potassium permanganate is deacidized quantitatively by organics to produce manganate, using pure water or margin solution as reference ratio, measuring the absorbance an of the manganate at its maximum absorbing wave length 430 nm, drafting the A-COD value operating curve, obtaining the concentration of the organics in the water, i.e.

本发明公开了一种对海水化学需氧量进行测定的光度测定法，该方法首先将海水样品进行预处理，再以碱性高锰酸钾为反应体系，这样海水中的有机物在强碱性介质中与过量的高锰酸钾迅速反应，高锰酸钾被有机物定量还原后生成锰酸盐，以纯水或空白溶液作参比，在锰酸盐的最大吸收波长430nm处测其吸光度A，该吸光度A与海水样品中的有机物的含量具有正相关关系。

Standard patch clamp methods were used to measure whole cell capacitance,zero current potential,reversal potential and potassium ion currents of Deiters′ cells in normal external solution.Equations were used to compute the relative membrane permeability ratio of Deiters′ cell to K+ and Na+ and the potassium equilibrium potential.

采用酶孵育加机械分离法分离Deiters细胞；利用膜电钳技术在全细胞模式下检测全细胞电容，记录在正常外液中的钾电流，零电流电位，反转电位，并根据相应公式计算离子通道K+与Na+的相对通透性比率及K+平衡电位。

Technological process and efficiency of the fertilizer potassium metaphosphate from phosphorus, phosphoric acid or phosphate fertilizer and potassium chloride were introduced.

介绍用元素磷和氯化钾生产偏磷酸钾肥料的工艺及产品肥效。

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。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"