harmful materials是什么意思

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用法例句

The terrorism not only was doomed to failure, but also brought about very harmful results: First, it wore down the strength of the revolution movement; Second, it brought about th.

恐怖主义活动不仅是注定要失败的,而且带来了极其有害的结果:首先,它消耗了本应属于革命运动的力量;其次,它造成了很多无辜者的牺牲及大量财产的损失;最后,它阻滞了俄国社会的发展进程。

Selective feeding of Calanus sinicus on harmful algal blooms species in East China Sea in spring;

春季东海中华哲水蚤对有害藻华物种的选择性摄食

The Research on the System of Observing and Predicting of the Harmful Algal Blooms;

有害藻华监测与预报系统研究

In this paper,the contributions of MSG to the control of phytoplankton species succesion are discussed in respect of the control of harmful algal blooms(HABs) by MSG,the mechanism of MSG,the method for studying MSG and the MSG model,which will provide scientific basis for predicting and controlling the occurrence of HABs.

从海洋中型浮游动物选择性摄食对有害藻华的控制、中型浮游动物的选择性摄食机制、中型浮游动物选择性摄食的研究方法和中型浮游动物的选择性摄食模型四个方面探讨了中型浮游动物选择性摄食对控制浮游植物种群演替的贡献,为进一步预测和控制有害藻华发生提供科学依据。

Do well indoor environmental test and to avoid harmful gas pollution;

搞好室内环境检测 严防有害气体污染

The research of harmful gas formation characteristic of coal-burning boiler operated by handwork;

燃煤手烧炉有害气体生成特征研究

Prediction and prevention of harmful gas in deep-lying long tunnel;

深埋长隧道有害气体的预测与防治

Migration of hazardous elements in acid coal mine drainage;

煤矿酸性矿井水中有害元素的迁移特性

Two methods have been used to determine the toxicity and content of hazardous elements(two major indicators for eco-type of cable materials) of cable materials,i.

采用了电缆材料绿色化的两大指标———毒性和有害元素含量的两种检测方法,即细胞毒性试验和电感耦合等离子体发射光谱仪法,认为这两种方法具有简便、精确、快速和省钱等优点,文中也提供了某电缆阻水膏和某种电缆护套料分别进行毒性试验和有害元素检测和分析。