source leaf 源叶
So sink was the main factor limiting yield under the late sowing.2. The population total leaves area, leaf source duration and dry matter production capacity increased with the increase of plant density.
2.随密度的增加群体叶源量、叶源持续期和源生产能力提高。
参考来源 - 不同栽培措施对夏玉米库源关系影响的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The results showed the mass photosynthetic rate, mass leaf source amount, dry matter weight, leaf areas weight and index of virus-free potato were superior to that of potato.
结果表明：脱毒马铃薯的群体光合速率、群体叶源量、干物重量、叶面积重量、叶面积系数均优于未脱毒处理。
An artificial leaf would use a reaction that forms part of the natural process of photosynthesis to turn sunlight and water into a clean fuel source.
“人造叶”将利用构成光合作用中部分自然过程的反应作用，将阳光和水变成一种清洁燃料的来源。
They took a leaf out of the open source play-book and made all their services into internal open source systems.
他们借鉴了开源的做法，将他们所有的服务都实现为内部的开源系统。
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