极其宝贵的

Groundwater is not only the precious resource, but also one of very important factors of complicated ecosystem.

地下水不仅是一种宝贵的资源，同时也是复杂的生态环境系统中极其重要的生态环境因子之一。

The project has provided invaluable experience to our aeronautical and avionic engineers in design and development, and given them considerable experience in managing new projects.

这个项目为我们在航空和航电方面的工程师在设计和研发方面，提供了极其宝贵的经验，赋予了他们在掌控新项目时拥有相当多的经验。

Sangoma provides an indication of card buffer overruns which we have found extremely valuable in debugging drop-out issues.

Sangoma提供了声卡的缓冲区，我们找到了极其宝贵的调试辍学的问题，超支的迹象。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。