engineer or worker site inspection or surveying activity industrial tripod suggesting the work may involve geodetic or structural measurement tasks with oil refinery background. - 測定 科學過程 個影片檔及 b 捲影像00:15
engineer or worker site inspection or surveying activity industrial tripod suggesting the work may involve geodetic or structural measurement tasks with oil refinery background. - 測定 科學過程 個影片檔及 b 捲影像00:14
engineer or worker site inspection or surveying activity industrial tripod suggesting the work may involve geodetic or structural measurement tasks with oil refinery background. - 測定 科學過程 個影片檔及 b 捲影像00:15
engineer or worker site inspection or surveying activity industrial tripod suggesting the work may involve geodetic or structural measurement tasks with oil refinery background. - 測定 科學過程 個影片檔及 b 捲影像00:13
engineer or worker site inspection or surveying activity industrial tripod suggesting the work may involve geodetic or structural measurement tasks with oil refinery background. - 測定 科學過程 個影片檔及 b 捲影像00:10
engineer or worker site inspection or surveying activity industrial tripod suggesting the work may involve geodetic or structural measurement tasks with oil refinery background. - 測定 科學過程 個影片檔及 b 捲影像00:14
engineer or worker site inspection or surveying activity industrial tripod suggesting the work may involve geodetic or structural measurement tasks with oil refinery background. - 測定 科學過程 個影片檔及 b 捲影像00:12
engineer or worker site inspection or surveying activity industrial tripod suggesting the work may involve geodetic or structural measurement tasks with oil refinery background. - 測定 科學過程 個影片檔及 b 捲影像00:12
engineer or worker site inspection or surveying activity industrial tripod suggesting the work may involve geodetic or structural measurement tasks with oil refinery background. - 測定 科學過程 個影片檔及 b 捲影像00:17
hand accurately measures white powder ingredient into metal cup on digital scale - 測定 科學過程 個影片檔及 b 捲影像00:04
scientist calibrating precise weights in a laboratory for accurate measurement and research - 測定 科學過程 個影片檔及 b 捲影像00:10
scientist carefully placing a calibration weight on a precision balance in a laboratory setting - 測定 科學過程 個影片檔及 b 捲影像00:01
building your own diy smart car robot and arm robot kit: a fun and educational project - 測定 科學過程 個影片檔及 b 捲影像00:10
a doctor's hands holds and manipulates the syringe in a rhythmic manner, flicking and tapping it to expel a nominal quantity of liquid to remove air and prevent the formation of embolisms - 測定 科學過程 個影片檔及 b 捲影像00:20
a doctor's hand is putting some medicine into a syringe from a glass vial, and then the doctor pushes the plunger to get just a little bit of liquid out - 測定 科學過程 個影片檔及 b 捲影像00:33
a doctor's hand holds the syringe up and pushes the plunger to get out just a little bit of liquid. the medicine shoots out of the needle at the end of the medical syringe - 測定 科學過程 個影片檔及 b 捲影像00:12
a female doctor filling a syringe with a medicinal solution from a glass vial. she is holding the syringe in an elevated position and using a flick and tap technique to expel a quantity of liquid - 測定 科學過程 個影片檔及 b 捲影像00:55