particle n. 1.顆粒,微粒;微量,極少量。 2.【物、數(shù)】粒子,質(zhì)點(diǎn)。 3.【語(yǔ)法】虛詞,不變?cè)~〔冠詞、副詞、介詞、連接詞、感嘆詞等〕;小品詞 〔yes, no 等〕,詞綴。 4.〔古語(yǔ)〕(文件中的)條,項(xiàng)。 5.【天主教】一小片圣餅。 He has not a particle of sense. 他一點(diǎn)腦子也沒(méi)有。 fundamental [elementary] particles 【物理學(xué)】基本質(zhì)點(diǎn),基本粒子。
The absolute neutron yield is measured by associated a - particle method 絕對(duì)中子產(chǎn)額利用伴隨粒子法進(jìn)行監(jiān)測(cè)。
Cosmic radiation is a naturally occurring ionising radiation that arises from outside the earth . it has two components , solar radiation from the sun and galactic radiation from outside the solar system . it primarily consists of particles such as protons , neutrons and a - particles 宇宙輻射是一種源自地球以外自然產(chǎn)生的致電離輻射,由太陽(yáng)輻射和太陽(yáng)系以外的銀河輻射組成,主要包含質(zhì)子中子和粒子等微粒。
The irradiation experimental results show that the resolution of thin detector e1 is higher than that of other thick detectors for ex - particles and protons detection . energy calibration for a - particles was completed with multiplication factor 1 / 3 . energy calibrations of a - particles in detector e1 and e1 , are 0 . 107 mev and 0 . 123 mev per channel , respectively 質(zhì)子能量刻度采用1檔,每道能量h約在0 . 0167mev道,但是在e _ 1探測(cè)器中的能量刻度隨著能量的增加略有所下降,這是由于高能質(zhì)子伴隨有較多的核反應(yīng)道對(duì)粒子探測(cè)產(chǎn)生了干擾,從而增加了在e _ 1探測(cè)器中的能量沉積道數(shù),使得每道能量略有所下降,另一個(gè)因素可能是探測(cè)器厚度的不均勻性的影響,但這并不影響對(duì)粒子的鑒別。