They were good catalyst for synthesis of n - butyl cinnamate.它们是催化合成肉桂酸正丁酯的良好催化剂.Butyl cinnamate was synthesized from cinnamic acid and butyl alcohol using tungstosilicic acid as catalyst.以钨硅杂多酸为催化剂,通过肉桂酸和正丁醇反应合成肉桂酸正丁酯.M...
The aforesaid total absence of conversation allowed every extraneous sound to be heard.上边谈到的他们的默不作声使得四方传来的一声一音都可以听得见....the aforesaid organizations and institutions.上述的组织和机构That person duly appeared among the aforesaid o...
He is egocentric and never considers others.他是个以自我为中心不为别人着想的人。Do you think I'm acting like this because I'm egocentric?你想我会这样是因为太自我中心 吗 ?The special relationships of the world are destructive, selfish and child...
灯塔的光束在渐浓的暮色中清晰可见。The lighthouse beam was quite distinct in the gathering dusk.他是新内阁中鹰派色彩最浓的成员之一。He is one of the most hawkish members of the new cabinet.挑选圣诞气氛浓的色彩，比如红的啦，绿的啦。Choose Christmassy colours such as red and gre...
左狗腿, 主要在于攻果岭的那一杆, 右边又沙又水.Dogleg left, request good approaching shot, water and bunker at the right.可以肯定不是狗腿, 应该是北非或苏丹那一带附近部族的短刀.Surely not. It'should be the saber of tribe around North Africa or Sudan.右狗腿, 右边一路有水,球道...
这些汽轮机可大致分为两种基本类型, 即冲动式和反动式.These turbines can be broadly split into two basic types, the impulse and the reaction turbines.蒸汽经过输送管进入汽轮机,汽轮机再带动发电机.The steam is carried through pipes to steam turbines which drive the elect...