Calorimeter J22201 Specific Heat Electric Heat Equivalent Thermal Physics Experiment Measurement Thermal Equipment

J16022 rain gauge plastic rain gauge rain gauge primary school geography experiment equipment teaching instrument

Micro piezometer J21016 mechanical experiment equipment physics experiment instrument middle school teaching instrument

Mechanical Stop 60 Seconds Electronic Stopwatch Stop Watch Physical Sports Timing Teaching Single and Double Hand Time-Sharing Table Junior High School

Gas Law Demonstrator Boyle Mallot Charlie Gel-Lussac's Law Equation of State for Ideal Gas

Wheel axle model physical mechanics experiment transmission demonstration teaching instrument mechanics model J31001

Ma Debao Hemisphere (Cast Iron) Ma Debao Hemisphere Iron Ball Experimenter J2115 Science and Technology Experimental Teaching Instrument

Object thermal expansion and contraction experimental material solid thermal expansion principle large experimental plastic ball iron ball hoop elementary school science

J22016 Wave-emitting sink direct-cast electric wave source with synchronous stroboscopic light source teaching experimental instrument Senior high school physics

Longitude and Latitude Model 32cm Earth Theodolite Model Geography Demonstration Teaching Learning Observation of Large Ornaments Experimental Instruments

The teaching mechanical energy of the air compression ignition instrument is converted into internal energy thermal experimental equipment ignition device J22203

Small Motor Model Motor Model Small Motor Experimenter Physical Model Teaching Instrument

Celestial sphere instrument 32cm celestial body running instrument transparent dual-purpose popular science constellation geography teaching experimental instrument high junior high school

J23047 positive and negative charge tester physics experiment equipment teaching instrument teaching aids preliminary Senior high school

Motor Principle Illustrator Demonstrator AC DC Dual Purpose Motor Generator Model Physics Electromagnetics

J28006 celestial orbiting instrument solar system demonstrator eight planetary model geography nine teaching high school junior high school

Handheld spectroscope physics teaching optics handheld direct-view spectroscope J22550 teaching instrument

Magnetic attraction type mechanics experiment box demonstration box teacher version magnetic paste type junior high school Senior high school physics teaching experiment equipment

Teaching Compass 40MM Student Science Experiment Chinese Positioning Plastic Compass Outdoor School

Plastic test tube rack 13mm 16mm 18mm glass test tube rack centrifuge tube rack blood collection tube rack laboratory consumables

Stainless steel lifting table manual aluminum oxidation lifting table 100 150 200 250 laboratory lifter small

Stainless steel tweezers dissecting tweezers pointed tweezers 125mm pointed tweezers toothed tweezers laboratory tweezers peeling onion clamping forceps

Small stainless steel lifting platform laboratory level meter manual lifting platform wall instrument lifting platform bracket

Stainless Steel Test Tube Rack Colorimetric Tube Rack Centrifugal Tube Aluminum Test Tube Rack Laboratory Consumables Blood Sample Sampling Tube

Energy Conversion Demonstrator Mechanical Energy Electrical Energy Thermal Energy Light Energy Conservation Mutual Conversion Teaching Physics 24024

Demonstration of Pulley Block Large J21031 Mechanical Effect Mechanics Demonstration of Pulley Block Two Single Three Parallel Three Series Pulleys

Magnetic attraction type optical demonstration box optical experiment box teacher version experimental equipment teacher version initial Senior high school aluminum alloy box

V-DS003 cabbage butterfly life history primary and secondary school teaching specimen high permeability resin

normal teeth magnifying model molar incisor canine magnifying human teeth teaching model

Strip dynamometer 1N2.5N5N10N spring dynamometer spring balance box junior high school physical mechanics experimental equipment

Mechanical Weight Meter 160kg120kg Height Weight 70-190cm Teaching Small Health Examination Human Body School

Light wind meter three cup type wind cup type anemometer wind speed wind direction meter handheld wind direction meter weather portable

Color Resolution Vision Meter Handstand Two-use Vision Meter Breadth Measurement Instrument Test Training Instrument Eye Teaching Experiment

机械停钟停表60s 0.2s 物理体育30秒0.1S实验器材力学计时器教学

定量吸球移液管三向球实验室硅橡胶吸球玻璃刻度吸管科研发三通球

Laboratory Stainless Steel Glass Scale Pipette Pipette Sterilization Cylinder Petri Dish Plate Bucket 60 90mm