查询词典 chemical method

The counter measures of solving these problems were suggested as follows: firstly, using water resources and fertilizer reasonably and choosing salt tolerance crops to control saltinization; secondly, choosing acid tolerance feed and using the chemical method to control acid rain; finally, soil erosion could be controlled by bioremediation.

对于三种生态环境问题，提出的控制对策如下：盐渍化的治理对策为合理用水、施肥，种植合适的耐盐作物；酸沉降治理对策为种植抗酸作物和采用化学调控方法降低降对作物的损害；水土流失使用生态恢复工程和生态重建工程进行治理。

In the production of biodiesel from cottonseed oil by chemical method, the refining process was improved by substituting adsorption treatment for washing and drying.

以棉籽油为原料，探讨了化学法制取生物柴油过程中以吸附剂处理替代水洗干燥的精制工艺。

So, it is very important to synthesize cyclic peptides by chemical method.

尽管从自然界中分离鉴定了很多具有生物活性的环肽，但含量甚微，分离纯化困难。

The EPA spent $ 1.5 million on an untested chemical method to neutralize the pesticide ethylene dibromide.

例如，1986年在一起未经检验的化学物质方案中，EPA向EDB支付的损失费高达150万美元。

The composition of the complex was determined by chemical method and elemental analysis.

研究了没食子酸的浓度和分散剂用量对产物的粒子大小的影响。

The chemical method is to add thiourea of 0. 3mg/L in the bath so as to envenom the activate center on the trench surface.

实验结果表明，凹槽选择性沉积铜，可实现微细凹槽无缺陷填充。

Methods The chemical method was used to prepare 72.3%,80.5%,96.1% deacetylated flyblow chitosan and IR was used to identify its structure.

采用酸碱化学法制备72.3%，80.5%，96.1%脱乙酰度的蝇蛆壳聚糖，并用红外扫描鉴定其结构。

Methods PIWIL4 peptide was synthesized using chemical method, and conjugated to Keyhole limpet hemocyanin as immunogen.

方法合成特异性PIWIIA多肽，以马来酰胺活化匙孔血蓝蛋白作为载体构建多肽免疫原，通过致敏大白兔，制备兔抗人PIWIIA多克隆抗体，然后用亲和层析法纯化抗体。

The molecular structural parameters of indophenol and its derivatives were calculated by semi-empirical molecular orbital quantum chemical method.

以半经验分子轨道方法计算吲哚酚衍生物的分子结构参数。

An chemical method by which prepared modificatory MnO 2 used in rechargeable alkaline manganese batteries is developed.

提出了一种制备可充碱锰电池用改性MnO2材料的化学方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。