亚慢性毒性实验研究表明，原油油气对动物神经系统的影响较为突出。
Sub-chronic toxicity experiments show that crude oil vapor has a prominent effect on animal's nerve system.
慢性锰中毒主要表现为神经毒性、生殖毒性，锰也能引起肝脏、肺等脏器的损害。
The cardinal symptoms in chronic manganese poisoning are the neural system, and reproductive function.
但是环境毒理学研究发现氟虫腈对生态环境具有潜在的危险性，并且具有慢性神经毒性。
With wide application of fipronil, the coming problems of ecological risks and environmental pollution were increasingly serious, and fipronil was also provided with chronic neurotoxicity.
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