emissive:Having the power or tendency to emit matter or energy; emitting.
发射的:具有发射物质或能量的力量或趋势的;发射的
Having the power or tendency to emit matter or energy; emitting.
发射的具有发射物质或能量的力量或趋势的；发射的
Development of Field Emission Materials with High Current Low Evaporation for Impregnated Cathodes
钡钨阴极用大电流低蒸发发射物质的研究
giving off light or heat or radiation: the physical temperature of the emitting material.
散发出光、热或射线的：放射性物质的物理温度。
the emission of electrons from very hot substances.
电子从极热的物质向外发射的过程。
The α emitter and target material should be closely bonded.
α发射体和靶物质应当是紧密结合的。
Because of the continuous decay, the quantity of radioactive material and the rate of emission of radiation decrease steadily.
由于连续衰变的结果，放射性物质的数量，辐射发射率都逐渐下降。
proton induced x ray emission
质子诱发x 射线发射
Something that issues from a source;an emission.
散发物，发射物从一发射源发出的东西；发射物
The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.
辐射由一种放射性物质发出的辐射，包括α粒子、原子核、电子、和γ射线
Pulverized particulate matter ejected by volcanic eruption.
火山灰火山爆发喷射出来的粉末状颗粒物质
a damaged reactor leaking radioactivity into the atmosphere.
一座损坏的反应堆向大气中泄露出发射性物质
Madam Curie insisted (that) there was something in nature that gave out radiation.
居里夫人坚信自然界存在着能发出射线的物质。
Synthesis and Field Emission Properties of Nanostructured Metal Oxide;
几种氧化物微纳米结构制备及场发射性质研究
Theoretical Study on the Properties of Absorption and Emission Spectra of 9-aminoacridine and the Derivatives;
9-氨基吖啶及其衍生物的吸收与发射光谱性质
the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation.
伴随有离子射线释放的一种放射性物质自发的瓦解过程。
Many materials appear to be capable of particle production or stimulation of particle production under irradiation.
许多物质在辐射照射下能够产生粒子或激发产生粒子。
Exempt Items of Radioactive Substances
放射性物质的豁免物品