particle n. 1.顆粒,微粒;微量,極少量。 2.【物、數】粒子,質點。 3.【語法】虛詞,不變詞〔冠詞、副詞、介詞、連接詞、感嘆詞等〕;小品詞 〔yes, no 等〕,詞綴。 4.〔古語〕(文件中的)條,項。 5.【天主教】一小片圣餅。 He has not a particle of sense. 他一點腦子也沒有。 fundamental [elementary] particles 【物理學】基本質點,基本粒子。
Full - flow lubricating oil filters for internal combustion engines - methods of test for initial particle retention efficiency , life and cumulative efficiency gravimetric method 內燃機滿液流式潤滑油過濾器.初始微粒滯留效率壽命和累積效率試驗方法
Methods of test for full - flow lubricating oil filters for internal combustion engines - part 4 : initial particle retention efficiency , life and cumulative efficiency gravimetric method 內燃機全流式機油濾清器試驗方法第4部分:原始濾清效率壽命和累積效率重量法
The relative momentum of two final particles and the cross section are zero at the threshold energy for an endothermic reaction , while the relative momentum of two initial particles is zero and the cross section at the threshold energy for an exothermic reaction is infinite 在吸熱反應的閾能處,出射粒子的相對動量以及截面均為零。在放熱反應的閾能處,入射粒子的相對動量為零,截面趨于無窮大。由于強子的動量僅提供如此低的質心系能量,強子物質中x 。
In this paper , urea particles and oil - vegetable seeds as initial particles are used to study granulation process in a vibrated fluidized bed , where the initial particles grow in a layered manner by spraying melt urea solution on them and reached the required granule size 本文以尿素或油菜籽顆粒為晶種,以不同濃度的尿素溶液為噴霧料漿,對振動流化床噴霧造粒特性進行了實驗研究。實驗在晶種上噴涂尿素熔融液或不同濃度的尿素溶液,使其以層式機理長大。
The pullulation of floes is a random process and it has nonlinear character . if the fragmentation of floes is not considered , the routine flocculation process is to form the small group from initial particle and the big group from small groups . finally the biggest group is formed from those big groups 由于絮凝體的成長是一個隨機過程,具有非線性的特征,如果不考慮絮凝體破碎的話,常規(guī)的絮凝過程是由初始粒子結成小的集團,小的集團又結成大的集團,然后結成更大的集團,這樣一步一步成長為粗大絮凝體。