cost down
英 美
The demand of users is to drive this cost down as much as possible.
用户期望将这个成本尽可能降到最低。
Existing telescopes could even be modified, bringing the cost down further.
因为现有的望远镜可以被改造成适用于该项目，预计总花销可进一步降低。
"To keep the cost down we went with lenses that aren corrected for many aberrations, " he says.
“为保证价格低廉，我们设计的镜头不能完全矫正畸变或其他失常。” 他说。
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