查询词典 lethal

Compared with before treatment, the enzyme activity of German cockroach changes with the difference of time after treated with sub-lethal doses of deltamethrin and phoxim.

经溴氰菊酯和辛硫磷亚致死剂量处理后德国小蠊体内酶活性在不同的时间与处理前存在差异。

Among lizards, only the Mexican beaded lizard and the gila monster possess poisonous venom, but they do not squirt it, and their venom is not lethal on contact.

在蜥蜴之中，只有墨西哥珠蜥和大毒蜥有毒，但也都不能喷射。并且触摸毒液也不是致命的。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。