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单词 带正电的
例句 DEFINITIVE EXAMPLES 权威例句〔alpha particle〕A positively charged particle, indistinguishable from a helium atom nucleus and consisting of two protons and two neutrons.α粒子:与氦原子核难以区分的带正电的粒子,包括两个质子和两个中子美国传统〔electropositive〕Having a positive electric charge.带正电的美国传统〔halide〕A chemical compound of a halogen with a more electropositive element or group.卤化物:由一种卤素与另外一带正电的金属元素或族形成的一种化合物美国传统〔neutral〕Atoms consist of positively-charged protons, negatively-charged electrons and neutral particles called neutrons.原子由带正电的质子、带负电的电子和称为中子的不带电粒子组成。剑桥高阶
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