古塔胶

Prior to the 17th century it was made of wood or wool in a leather cover.

球：我们试图击进洞里的圆形物体。17世纪之前，球用木头或羊毛制成。17世纪后，人们把羽毛煮沸、压缩，然后缝制在皮封面内。19世纪50年代发展成古塔胶球（或与杜仲胶其它物质的混合物），20世纪，这种球的核心包覆条状橡胶。

A rubbery substance derived from the latex of any of several tropical trees of the genera Palaquium and Payena, used as an electrical insulator, as a waterproofing compound, and in golf balls.

古塔胶从某些胶木属和巴耶榄属热带树的乳胶中提练出的橡胶物质，用作电绝缘体，防水复合物或做高尔夫球

A rubbery substance derived from the latex of any of several tropical trees of the genera Palaquium and Payena,used as an electrical insulator,as a waterproof ing compound,and in golf balls.

古塔胶从某些胶木属和巴耶榄属热带树的乳胶中提练出的橡胶物质，用作电绝缘体，防水复合物或做高尔夫球

Gutta percha Material used in the manufacture of early golf balls.

早期制造高尔夫球使用古塔胶材料。

The technology that undergirds Diactif is patented, and Chua and his partner, Shiladit Sengupta, a postdoctoral fellow in bioengineering at the Massachusetts Institute of Technology, have begun to work on an advanced formulation of the gel that wouldn't require refrigeration.

加强 Diactif 的技术已经获得了专利，蔡及其合作伙伴——麻省理工学院生物工程博士后研究生希拉迪特·森古普塔，已经开始研制一种更先进的凝胶配方，这种新的凝胶无需冷藏。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。