她是个非常沉着的人。没什么能让她惊慌的。She was a very calm person. Nothing could fluster her.每个人都必须冷静沉着地仔细考虑这一情况。Everyone must think this situation through calmly and coolly.她以沉着冷静著称。She has a reputation for being calm and cool-headed....
Using local materials ( cement, sand, stone ), HSM pumping aid, ZL slag, C 70、 C 80 high - strength pumping concrete was developed.利用本地材料 ( 水泥 、 砂 、 石 ) 和自行研制的HSM高效泵送剂 、 ZL矿粉配制出C70 、 C80 高强 泵送混凝土.All dependants of in cou...
一段石阶从鹅卵石路上一直向上直通城墙。A number of staircases ascend from the cobbled streets onto the ramparts.过了林木线之后沿着长满青草的小道直通陡峭的顶.Above the treeline take a grassy path leading steeply towards the summit.这条路直通那儿.The road leads direct th...
Medicine intermediate N - ethylethylenediamine ( NEED ) was synthesized from acrylamide and ethylamine by addition reaction and Hofmann rearrangement.以丙烯酰胺为起始原料,经乙胺加成后,再经Hofmann重排两步反应后合成了药物中间体N - 乙基乙二胺 ( NEED )....