毒物

Under toxic load shocking, The PGANN found by the database of UASB acclimated by the toxicant could be applied to predict the dynamic variation of the UASB been not acclimated. The PGANN found by the database of the UASB been not acclimated could also be applied to predict the dynamic variation of the UASB acclimated by the toxicant.

毒物负荷冲击下，在未驯化的UASB反应器上建立的PGANN可用来预测驯化过的UASB反应器各参数的变化，在驯化过的UASB反应器上建立的PGANN也可用来预测未经毒物驯化的UASB反应器各参数的变化。

The center has eight research divisions, including Biometry and Risk Assessment, Biochemical Toxicology, Chemistry, Genetic and Reproductive Toxicology, Microbiology, Molecular Epidemiology, Neurotoxicology, Veterinary Services.

该中心有8个研究部，包括寿命测定和风险评估，生化毒物学，化学，遗传和生殖毒物学，微生物学，分子流行病学，神经毒物学，兽医服务。

3The sensitivity of organisms on toxin differs at different development stage: in common, the embryo before blastula was more sensitive to toxin.

3生物不同发育阶段对毒物的敏感性不同：一般来说原肠期之前的胚胎对毒物较敏感。

Thus, when mankind looks upon industrial poisons, maintained in tanks, they assume a permanent cesspool, but this is not always the case.

因此，人类关注工业毒物，把它们封在罐子里，认为这是永久的毒物处理场，但情况并非如此。

They do not always have an all-or-none effect; degrees of poisoning may occur, and at a given dose some substances are far more toxic than others (e.g., a pinch of potassium cyanide can kill, whereas a single dose of ordinary table salt must be massive to kill).

毒物不一定具有全或无效应；一些毒物的毒性比另一些毒物要大得多，如0.25克氰化钾就足以致命，而一次服用大量的精制食盐也会致命。

They do not always have an all-or-none effect; degrees of poison ing may occur, and at a given dose some substances are far more toxic than others (e.g., a pinch of potassium cyanide can kill, whereas a single dose of ordinary table salt must be massive to kill).

毒物不一定具有全或无效应；一些毒物的毒性比另一些毒物要大得多，如0.25克氰化钾就足以致命，而一次服用大量的精制食盐也会致命。

Long—term potentiation,an important form of synaptic plasticity,is believed to underlie learning and memory.

铅是一种严重的环境毒物和神经毒物，它能损伤婴幼儿和儿童的智力发育和认知功能[1，2]。

With prehensive control measures , development of technological innovation and using new chemical materials ,concentrations of dust and toxicants have significantly lowered except the noise. The characteristics of hazards in

采取综合性防治措施后，粉尘、毒物浓度明显下降，铸造作业职业危害特点是低浓度粉尘、多种低浓度毒物与高噪声强度共存。

The FNN built by database of unacclimated UASB reactor shocked by toxic load did not adapt to predict UASB reactor acclimated by toxicant, The FNN built by database of UASB reactor acclimated by toxicant also did not adapt to predict unacclimated UASB reactor.

由未经毒物驯化的UASB反应器建立的模糊神经网络不适合预测毒物驯化过的UASB反应器，由毒物驯化过的UASB反应器建立的模糊神经网络也不适合预测未驯化的的UASB反应器。

In order to control the benzene contents in pump operating room, enhance scientific management of the poisons work in the room and keep the health of workers, we adopt poison work classification method to classify tasks in pump operating room according to different concentration, working time and jeopardous level.

jeopardous reason ；为了控制泵间中苯的危害，加强泵间中苯毒物作业劳动条件的科学管理，保障接触苯毒物作业的员工的身体健康，根据泵间中苯不同浓度、员工作业时间和毒物的危害程度，采用有毒作业分级方法，对苯泵间进行作业分级。

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。