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免費 實驗表 視頻 - 頁面 2

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laboratory worker preparing experiment at lab
animation of chemistry school icon over ruled paper background
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animation of test tube in a stand icon moving against white lined paper background
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future ui colorful infographics business ui ux kit elements
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men mixing and revolving paint
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drop of blood falling into test tube of water
blue and red liquid pouring into beakers
doctor hands using tablet checking health history data in tablet in office.
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成熟的商人讨论股市动态
lab assistant adding green liquid in test tube monitoring chemical reaction. technician carefully drips the solution from the pipette into glass tubes for dna analysis. pharmaceutics laboratory. high quality 4k footage
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戴着面具的年轻男女正在进行商务视频通话,并展示带有图表和图表的文件
scientist testing in laboratory for analysis or researching. laboratory tube with blood and virus. scientific lab close-up. pandemic disease healthcare vaccine research. high quality 4k footage
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science lab illustrations
animation of scientific data processing over laboratory test tubes
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金融專業人士分析數據
用笔记本在纸上用尺度画线
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多民族人手拿<unk>笔在白色木桌上分析文件,图表,财务报告和图形
成功的女商人做笔记和站在屏幕附近
pouring liquid into flask, scientific data animation over laboratory experiment
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science textbook and labware illustration
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ophthalmology clinic
animation of math equation handwritten on white board with laboratory glass
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freshly squeezed orange juice dripping into a plastic measuring cup - extreme close up, slow motion
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用簡單的<unk>筆在圖中畫線
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animation of mathematical equations on mid section of scientist performing experiment at laboratory
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scientist injecting chemicals into test tubes. test tube of colored liquid on the lab table in the background of the glass flasks. poured from glass pipette into test tube illuminated with blue light. high quality 4k footage
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兩個瘋狂的孩子坐在辦公桌旁做項目工作
animation of data processing over beakers
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戴着口罩的男性医生与多民族医生团队在医院讨论冠状病毒肺病的统计数据,
lab biochemist dripping oil into test tube with plant organic cosmetology study. high quality 4k footage
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scientist using a scanning electron microscope (sem)
animation of mathematical equations over biracial male scientist working in lab
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vertical video close up of film clapperboard or slate with camera lenses and lighting accessories shooting movie or video in studio
a calculation is shown on a blackboard - medical laboratory
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man and woman doing control at brewery
animation of white diagram over beaker with fluid
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lab flasks and measuring cups in medical laboratory. laboratory glassware
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兩個聰明孩子坐在辦公桌旁做項目工作
lab experiment with test tubes and blue liquid
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doctor looking dna molecule on computer
animation of scientific data processing over test tubes in laboratory
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沿著實驗室台和設備進行追蹤
animation of increasing numbers over test tubes and reagents
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pharmacists working indoors
demonstrating ph changes with butterfly pea flower
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color change with different ph solutions
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experiment using butterfly pea flower as ph indicator
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medical ampoule of saline solution in hospital corridor with icons and chemical formulas digitally overlaid
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嚴肅的內容 女老闆在平板電腦上檢查數據
observing bromothymol blue reaction in test tube
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