The photographic elements contain a blue - sensitive hydrophilic colloid silver halide emulsion layer.照像材料含有亲水胶体的感蓝卤化银卤剂层.The formation of polyhalide depends on the combination of central halide ions.多卤化物的形成取决于中心卤化物离子的结合...
The boy surrendered the catapult to the teacher.那孩子把弹弓交给了老师.He fitted a pebble into the catapult and pulled back the elastic. Twang!他把石子放进弹弓里，然后往回拉动橡皮筋。“嘣”！The sting of the catapult bullet had worn off.挨的那下弹弓不那么疼啦....
I have always had an enquiring mind where food is concerned.我在吃的方面一向很爱探究求索。I was enquiring in Lost Property at Derby.我当时正在德比的失物招领处打听。a child with an enquiring mind有好奇心的孩子...
A waft of perfume drifted into Ingrid's nostrils.一股香水味飘进了英格丽德的鼻子里。A good year , which this is, of course, will waft.像这样,好年份产的酒, 当然十里飘香.A waft of perfume can revitalize, cleanse , chan ge how you feel and even as ind...