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- Moreover, the selectivity of the catalysts was correlated with metal ion species as well as their anionic counterparts or the like. 總結了各種金屬離子、磷酸鹽和以氧化硅-氧化鋁為主體的催化劑與選擇性的關(guān)系；
- Ion species and their energy in the cathode sheath of N 2 abnormal glow discharges with short electrode interval were determined by molecular beam mass spectrometry (MBMS). 利用國內首臺三級差分抽空的分子束質(zhì)譜裝置;對短間隙氮異常輝光放電陰極鞘層區正離子組分及能量分布進(jìn)行了診斷研究.
- The surface hardness variations of some kinds of polymers were compared and the influence factors such as ion species, particle energy and dose were analyzed. 通過(guò)比較幾種不同類(lèi)型的聚合物材料在注入前后表面硬度的變化，分析注入離子種類(lèi)、注入能量、注入劑量等工藝參數對聚合物的影響。
- Concentration level of TSP and chemical speciation of ion species in Beijing 北京市大氣顆粒物的濃度水平和離子物種的化學(xué)形態(tài)
- Do wolves belong to the canine species? 狼是犬科動(dòng)物嗎？
- We should do our best to save endangered species. 我們應該竭盡全力挽救瀕于滅絕的生物。
- This rare bird has become an endangered species. 這種珍禽已成為瀕臨滅絕的物種。
- He was wearing a strange species of hat. 他戴著(zhù)一種奇怪的帽子。
- There are many species of chrysanthemum. 菊花品種很多。
- Today the survival of our species is threatened. 今天人類(lèi)的生存受到了威脅。
- The giant panda has become an endangered species. 大熊貓已成了一種瀕臨滅絕的動(dòng)物。
- Unlike most other bats, this species is diurnal. 這種蝙蝠與大多數蝙蝠不同，是在日間活動(dòng)的。
- We sailed from Perth with a cargo of raw ion. 我們裝著(zhù)一船生鐵從佩思啟航。
- This species of flower flourishes in a warm climate. 這種花在溫暖的氣候中長(cháng)得茂盛。
- Both of these particles can produce ion pairs. 這兩種粒子都能產(chǎn)生離子對。
- An endangered species; an endangered culture. 瀕臨絕種的生物種類(lèi); 瀕臨絕傳的文化
- Computers are now widespread ion China. 如今，計算機在中國被廣泛應用。
- The crystals were cleaned by argon ion bombardment. 結晶體由氬離子轟擊而凈化。
- The hydroxyl ion has a negative charge. 氫氧根離子有一個(gè)負電荷。
- The seas, wind, and te ion were really high. 大海上風(fēng)吼浪涌，我們的情緒也高度緊張。
