2.876 palavras e expressões · 21 temas
disperse in solvent to form solution
溶解；使溶解
separate liquid components by vaporization and condensation
蒸馏
separation using differences in volatility
蒸馏；蒸馏法
resistant to damage or wear over time
耐用的；经久的
able to recover shape after force is removed
有弹性的；弹性的
negatively charged particle in atomic structure
电子
chemical type defined by number of protons
元素；单质
absorbing heat from the surroundings
吸热的
releasing heat to the surroundings
放热的
separate particles using a porous barrier
过滤
separation by passing fluid through barrier
过滤；过滤法
capable of igniting and burning readily
易燃的
laboratory vessel with body and narrow neck
烧瓶
able to bend without breaking easily
柔韧的；易弯曲的
ventilated enclosure limiting exposure to airborne hazards
通风橱
state expanding to fill available container
气体
narrow marked vessel for measuring liquid volume
量筒
resistance to scratching or indentation
硬度
energy movement driven by temperature difference
传热；热量传递
not dissolving to an appreciable extent
不溶的；难溶的
atom or group with net electrical charge
离子
electrostatic attraction between oppositely charged ions
离子键
form of element with particular neutron number
同位素
protective outer garment for laboratory work
实验服；实验室工作服
flowing state with definite volume
液体
physical material with mass and volume
物质
equilibrium temperature for solid liquid transition
熔点
curved liquid surface near container wall
弯月面；液面弯曲部分
material or element with metallic properties
金属
combination of substances without fixed chemical ratio
混合物
material or element with metallic properties
金属
Definição em inglês an element or material typically able to conduct heat and electricity and often capable of being shaped
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