Optical density
[计] 光密度\\n[化] 光密度; 黑度
🧩 词语组成解析
🗣️ 情景例句
Now, the important thing is to get the hook close to the fish.
现在最重要的是让鱼钩靠近鱼。
He who hesitates is lost.
举棋不定，坐失良机。
Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop.
反之，如果恒星很小，维持生命的行星就要在离恒星很近的轨道上运行，而且要有极好的条件才能使生命得以发展，