presence.的例句（presence.在句子中的用法）

• Her presence lent an air of respectability to the occasion. 她的到场使那种场合增添了崇高的气氛.
• His mind could find intense relief and satisfaction in the presence and actions of Stephanie Platow. 他的心情却能够在丝黛芬妮·蒲纳托的风度和举动上受到极大的安慰与满意.
• The high tone of the occasion was assured by the presence of a dozen wealthy patrons. 十几位富有资助人的出席确保了仪式的高格调。
• The Red Cross said it is withdrawing its staff until they receive clear signals from all sides that their presence is welcomed. 红十字会称他们正在撤回所属职员，直到各方都明确表示欢迎他们的存在。
• The boy had the presence of mind to turn off the gas. 那男孩子镇定地关掉了煤气。
• They argued that his presence in the village could only stir up trouble. 他们认为他在村里出现只会招惹麻烦。
• She recognized at the same instant Rachel's presence. It pulled her up short. 雷切尔一出现她就认出她来了，随即停下了手中的活儿。
• Mono - substituted aromatic hydrocarbons were selectively nitrated with NO _ 2 in the presence of molecular imprinted polymers ( MIPs ). 应用NO_2硝化剂,研究分子印迹聚合物 ( MIPs ) 催化剂在单取代芳香烃硝化反应中的催化特性.
• He imagined a seraphic presence in the room. 他想象自己能像天使一样出现这个屋子中.
• They argued that his presence in the village could only stir up trouble... 他们认为他在村里出现只会招惹麻烦。
• The probe is sensitive enough to detect the presence of a single microbe. 这个探针的灵敏度很高,足以测出任何微生物的存在.
• Dimethyl carbonate is synthesized directly from carbon dioxide and methanol in the presence of magnesium methoxide. 报道一种在甲醇镁作用下,由二氧化碳及甲醇直接合成碳酸二甲酯的反应过程.
• He could mesmerize an audience by the sheer force of his presence. 他只要一出场,观众就为之倾倒.
• It was not the custom for elderly people to mar the picnics with their presence. 大人们照例不参加这样的野餐以免扫兴.
• Litmus paper can be used as an indicator of the presence of acid in a solution. 石蕊试纸可用以测试溶液是否含酸.
• The Minnesota work on kaersutite also showed the presence of the isotope neon - 21. 明尼苏达大学关于钛角闪石的研究表明,其中也存在同位素氖 - 21.
• Jabber is an open instant message and presence protocol and has been widely used. jabber作为 一种流行的开放式即时消息传递和现场服务协议,已经获得了广泛的应用.
• Polymerization of isoprene in the presence of ( NdCl 3 + FeCl 3 ) n Phen HAl - ( i - Bu ) 2 was studied. 本文报道由(NdCl_3+FeCl_3 ) ·nphen -HAl ( i -Bu ) _2催化体系引发异戊二烯聚合的结果.
• Isopentyl lactate was synthesis from acid and isopentyl alcohol in the presence of ferric chloride hexahydrate. 在六水三氯化铁存在下可以由乳酸和异戊醇合成乳酸异戊酯.
• The presence of angina indicates significant coronary ischemia. 心绞痛本身说明有明显的冠状动脉供血不足.