Both environmentally safe and economically sound?
既环保又经济？
The question was how to apply the fungal spores to the water evenly to ensure uniform coverage, and still be environmentally safe.
问题是如何使真菌孢子均匀地铺在水面，并保证这些真菌对环境是无害的。
Breeding for resistant cultivars has proved to be an economical, effective and environmentally safe method to control this disease.
培育抗病品种是防治该病最为经济、安全和有效的途径。
Reusable phosphor plates are environmentally safe but need to be disposed of according to local regulations.
可重复使用的荧光粉板，环保安全，但需要根据当地法规处理。
Directing gains in economic efficiency towards increased free time and reduced energy consumption, rather than making more stuff, could create a better and more environmentally safe world.
“与其提高生产数量获得直接的经济效益，还不如减少工作的时间和能源的消耗，这样还有助于营造一个更好更环保的世界。” ”
The ceiling may have wood reflectors, or a few boxes filled with environmentally-safe fiberglass material may hang from the ceiling to stop any ringing caused by the ceiling.
天花板上可能会有木制反射面，或者有一些用环保玻璃纤维填充的小盒子悬挂在天花板上以防止由于天花板带来的任何响声。
The ceiling may have wood reflectors, or a few boxes filled with environmentally-safe fiberglass material may hang from the ceiling to stop any ringing caused by the ceiling.
天花板上可能会有木制反射面，或者有一些用环保玻璃纤维填充的小盒子悬挂在天花板上以防止由于天花板带来的任何响声。
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