查询词典 lac

Lac is a natural substance that is secreted by the insect "Coccus lacca" often referred to as the lac beetle.

虫胶是由一种名为"Coccus lacca"的昆虫，也即是人们平时说的紫胶虫分泌的一种天然物质。

Content of mineral salt has certain relationship with thickness of raw lac, mortality, fecundity and amount of lac secreted by per Kerria lacca.

无机盐含量与胶被厚、死亡率、怀卵量、个体泌胶量有一定关系。

Come forward new formula to count mortality of lac insect.There are obvious linear relationship between individual weight and adult density, between adult density and amount of lac secreted by per Kerria lacca on double logarithmic coordinate axis.

有针对性地选择固虫密度、性比、死亡率、泌胶量、怀卵量、胶被厚、放收比指标，分别评价紫胶虫在不同需求下的经济指标，提出了3个评价公式。

A resinous secretion of the lac insect deposited on trees and used in making shel lac .

紫胶，虫胶由紫胶虫分泌的沉积于树上的树脂分泌物，用于制造虫胶清漆

Lake Geneva or Lake Léman (French Lac Léman, le Léman, or Lac de Genève) is the largest freshwater lake in Central Europe. 60% of it comes under the jurisdiction of Switzerland (cantons of Vaud, Geneva, and Valais), and 40% under France (Haute-Savoie).

日内瓦湖又称雷蒙湖，是中欧中第二大的淡水湖，五分之二的面积在法国的上萨瓦省，剩下五分之三分布在瑞士的沃州、日内瓦和瓦莱州内。

Have led to high species diversity and genetic diversity of lac insects , which provide good condition for lac pro2

我国紫胶虫物种和遗传资源丰富，生态环境类型多样，为紫胶虫资源的可持续利用提供了

Lac is a natural substance that is secreted by the insect "Coccus lacca" often referred to as the lac beetle.

虫胶是由一种名为&Coccus lacca&的昆虫，也即是人们平时说的紫胶虫分泌的一种天然物质。

The research of phenol-formaldehyde resin modified with lac can be expected to widen the application of the lac and enlarge the utilization of the renewable resource.

研究了对紫胶改性酚醛树脂胶粘剂的固化时间、接胶合板的粘接强度和甲醛释放量进行了测定。

Fourier infrared spectrum was used to differentiate raw lac, bleached las and lac mixed with resin.

利用傅里叶红外光谱分别对紫胶原胶、漂白紫胶、掺有松香的紫胶、接枝共聚紫胶进行了鉴别研究。

Trp and lac operons were usedsas the research object in this paper and two extended mathematical models were proposed on the basis of previous works. The parameters of the model were determined and the results were analyzed. A steady-state optimization model of tryptophan biosynthesis was established based on indirect optimization method. The network analysis was used to lac operon system.

本文以色氨酸操纵子和乳糖操纵子为主要研究对象，在前人的研究基础上建立了较为全面的新的数学模型，确定了模型参数，并对计算结果进行了分析，建立了稳态的优化模型，并利用间接优化法对色氨酸生产过程进行优化；利用网络分析法对乳糖操纵子系统进行分析。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。