Its characteristic is long do not fade, natural, beautiful, avirulent insipidity.

其特点是长久不褪色，自然，美观，无毒无味。

Newcastle disease virus (NDV) avirulent strain B95 was newly introduced from abroad.

新城疫病毒B95 (NDV B95)是从国外引进的一株热稳定性的天然弱毒株。

The invention of molecular labeling method of Pyricularia grisea avirulent gene belongs to the field of agricultural biotechnology.

本发明稻瘟病菌无毒基因的分子标记方法属于农业生物技术范畴。

Polyethylene glycol (peg) of epoxy ethane hydrolysate of polymers, avirulent, without excitant, widely used in various kinds of pharmaceutical preparations.

聚乙二醇为环氧乙烷水解产物的聚合物，无毒、无刺激性，广泛应用于各种药物制剂中。

Recent advances in cloning of avirulent genes in pathogens and resistant genes in plants, together with molecular mechanism of plant disease resistance, were reviewed.

报告了病原无毒基因和植物抗病基因克隆；植物抗病分子机制的研究进展。

In the use of temperature range, silicate tube can be used for a long time, not easy ageing, not metamorphic avirulent insipidity, heat preservation performance for a long time.

在使用温度范围内，硅酸盐管可长期使用，不易老化、不变质无毒无味、保温性能长期不减。

Epoxide system which consists of H2O2 and avirulent metal catalyst stands a potential chance of development of synthesis, process research and cheap production on a large scale.

H2O2与廉价的、相对无毒的金属催化剂相结合的环氧化系统，在廉价生产和具体合成研究上具有很重要的意义。

The product has the avirulent and harmless pollution-free low temperature rapid processing operation simple the sources of the raw materials widely price low clean production etc.

本研究产品具有无毒、无害、无污染、低温快速处理、操作简单、原料来源广泛、价格低、清洁生产等特点。