比色法涉及氟离子对预先形成的颜色的消色作用.The colorimetric methods involve the bleaching of a preformed color by the fluoride ion.用香草醛-冰醋酸比色法测定西洋参中总皂甙的含量.The content of ginsenoside in Panax quinquefolium L was determined by colorimetry.方法: ...
a pivotal role in European affairs在欧洲事务中的关键作用The Court of Appeal has a pivotal role in the English legal system.上诉法院在英格兰司法体系中起着中心作用。He has established himself as a pivotal figure in US politics...他已经确立了自己在美国政界的核心地位。Any d...
There are karst caves in Guilin.桂林有溶洞.Guilin is known throughout the world for its scenery.桂林以山水著称于世.She lives in Guilin Mansion.她住在桂林大厦。The scenery here has great charm, reminding one of the land of Guilin.这里山清水秀, 宛然桂林风...
She was plucked from the corps de ballet to take on Juliet...她从芭蕾舞团的伴舞队中被挖掘出来，担任朱丽叶这一角色。He glanced at Juliet accusingly and she looked suitably abashed.他怪罪的一瞥,朱丽叶自然显得很窘.She was plucked from the corps de ballet to take on...
斜视有时候可以通过戴眼罩来纠正.A squint can sometimes be corrected by an eyepatch.行刑时犯人戴着眼罩.The prisoner wore a blindfold when he was executed.他伸手去触摸遮住左眼的黑眼罩。His finger went up to touch the black patch which covered his left eye....
玄关处的大厅铺着黑白相间的大理石地砖。The entrance-hall was paved with black and white marble tiles.进进出出之间, 玄关的安排自蕴玄机.Between in and out, the arrangement of porch from accumulate mystery.“玄关”是由户外入户的过渡专用空间.The vestibule a special transIt�...
请于今日将随函附上的捐款表格用所提供的邮资预付的信封寄回。Return the enclosed Donation Form today in the prepaid envelope provided.灯光照在满是灰尘的墙上，反射回苍白的冷光。Lights reflected off dust-covered walls creating a ghostly luminescence.军官们打算重新夺回该市的防御区。Officers ...