初步试验表明，该方案切实可行。
人工栽培发菜初步试验表明，发菜在人工栽培条件下有一定程度的生长。
The experiment of artificial culture of the algae illustrated that it could grow to a certain extent in artificial conditions.
一种安装在养鱼用的增氧机上，用于节能的装置，初步试验表明，可以节能25%左右。
A device arranged on an aerator for fish feeding and used to save energy is provided, and a preliminary experiment shows that the device can save the energy by about 25%.
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