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免費 生態研究 視頻 - 頁面 2

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戴著防護套裝和眼鏡的科學家在實驗室工作,用植物樣本
用注射器和针来污染蔬菜, 绿色叶子的近距离拍摄, 转基因概念
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young caucasian man chopping away at a tree stump
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people at adventure park
研究員身穿防護服,戴防護眼鏡的女性在綠色田野敲打玻璃
mathematical equations and diagrams against man cycling in the forest
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科学家在实验室中对植物进行研究 2
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在背景上拍摄绿色三叶草形状的近距离工作室拍摄,以庆祝圣帕特里克日
two kids discovering thing in the forest
group of modern scientists biotechnology scientist in white suit with tablet for working organic hydroponic vegetable garden at greenhouse
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female scientist checking plants
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innovative biochemists making breakthrough
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archaeologist examining a fossil
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scientist examining microgreens in a laboratory
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asian girl holding plant in garden on sunny day smiling
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animation of dna strand and shapes over caucasian woman with megaphone and mathematical equations
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botanist studying a leaf for microscopic organisms 4k
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quality control engineers with tablet computer walking through modern greenhouse examining and discussing vegetable production
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let's make some real discoveries
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a masked woman examines a potted plant in a plant nursery in bright sunlight
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woman wearing sports clothing doing yoga on mat in forest by lake or river enjoying peace and beauty of nature
gardeners working indoors
scientist holding a specimen and checking plant in greenhouse 4k
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close-up of a grandfather and his two grandsons focusing intently as they tie their shoelaces on a grassy field
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digital composition of waving greece flag against soldier with a gun keeping an eye on surroundings
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botanists studying a leaf 4k
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白人女性和男性研究人员穿着白色外套,面具和谷歌使用平板电脑,并在绿地进行害虫控制时做笔记
a young woman scientist at a creek, wearing protective eyewear and a lab coat, taking notes on a clipboard
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白人研究人员穿着防护服和防护眼镜的人在绿色田野中行走,
kids playing and investigating the surroundings
gardeners working indoors
年轻的女农业工程师穿着防护工作服, 站在树<unk>旁边, 垂直农场的绿<unk>苗, 触摸它们的叶子
一群朋友在城市裡吃街頭食物,同時聊天和花時間在一起
白人研究人员穿着防护服, 拿着试管和树枝在绿地进行害虫控制
botanist studying a leaf 4k
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一名戴着面具的亚洲男人从后面看来,他<unk>着检查和触摸在幼儿园商店的monstera植物的叶子
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一位非洲裔美国妇女和阿拉伯同事在森林中观察树叶
animation of molecules over caucasian scientists doing experiments
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白人研究人员穿着防护服和防护眼镜的人在绿色的田野里敲打玻璃
scientist examining cannabis plants with magnifier
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科学家在实验室中对植物进行研究 3
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plant examination in a laboratory setting
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靠近手 孩子和成年人 打花放在一块布底下 创造有趣的艺术 穿着手<unk>从音乐节工作坊为所有年龄团结小组活动
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gardeners working indoors
白人研究員女士在綠色田野中進行害蟲控制時,戴著防護服拿著試管
白人研究員女士在綠色田野中進行害蟲控制時,戴著防護服拿著試管
quality control engineers with tablet computer walking through modern greenhouse examining and discussing vegetable production
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fisherman selects and showcases multicolored flies from plastic saltwater tackle box held on lap
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白人男子和非洲裔美国妇女活动家拿着小树,谈论在森林里种植它们
closeup of edible flowers cooking
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