Mouse bone marrow polychromatic erythrocyte micronucleus test was negative.是什么意思？

Mouse bone marrow polychromatic erythrocyte micronucleus test was negative.

对小鼠骨髓嗜多染红细胞微核试验结果为阴性.

mouse

n. 老鼠，鼠标，羞怯[胆小]的人，[非正式用语] 眼部青肿；vi. 捕鼠，窥探，偷偷地寻找；

例句
Use your mouse to drag the pictures to their new size.
用鼠标拖动图片,将其调整为新的尺寸。

bone

n. 骨头，尸骨，骨质物，有…样的骨头的；vt. 挑鱼刺，剔骨头，剔去…的骨；vi. 苦学，专心致志；

例句
...a small, expensive pocketknife with a bone handle.
昂贵的骨柄小折刀

marrow

n. 骨髓，脊髓，滋养品，〈英〉食用葫芦；

例句
Some films chill you to the marrow of your bones.
有些电影让人毛骨悚然。

erythrocyte

n. 红细胞，红血球；

例句
Objective To study Checking and characteristanalyzing erythrocyte activatory T caused by intestinal disease.
目的探讨肠道疾病引起红细胞T活化的检查及特点分析.

micronucleus

n. 小核，微核（指原生动物纤毛虫类体内较小的细胞核，有遗传功能）；

例句
Mouse bone marrow polychromatic erythrocyte micronucleus test was negative.
对小鼠骨髓嗜多染红细胞微核试验结果为阴性.

test

n. 试验，考验，测验，化

例句
Car manufacturers are already producing small numbers of electric vehicles to test customer acceptance...
汽车制造商们已经开始生产少量的电动车辆以测试顾客的接受程度。

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

negative

adj. 消极的，否认的，[数]负的，[心]反抗性的，无预期结果的；n. 否定词语，否定的观点，消极性，[摄]底片；vt. 否定，拒绝；

例句
Being unemployed produces negative attitudes to work...
失业会产生对工作的消极态度。