The adder is Britain's only venomous snake.蝰蛇是英国唯一的一种毒蛇。a highly venomous snake剧毒的毒蛇A large venomous snake ( Lachesis mutus ) of tropical America, having brown and grayish markings.热带美洲的一种巨型毒蛇 ( 巨蝮巨蝮属 ), 长有棕色和浅灰色花纹....
Using calcium chloridize and sodium phosphate dibasic, this paper synthesizes hydroxyapatite having hexagonal system at 40 ℃.本文以氯化钙和磷酸氢二钠为原料,在40℃温度下合成了具有六方晶系的羟基磷灰石.Under proper condition the dibasic alcohol and bisphenol...
返回指定下标的字符.Returns the character at the specified index.在第2章,分析了粘连下标的主要特征,给出了一种新的投影方法.Chapter 2 analyzes some features of merged subscripts and presents a new projection method....