国际版输入“spdr xbi”给出的第一个词条便是它的官网,它家官网长酱紫。 右边Quick Links下有个Fact Sheet链接,是XBI的简单介绍PDF档,那就把它下载下来吧。打开PDF档,可以看到当前这个PDF档的时效是2020年12/31日,然后截了下面这张图,这里边高亮了3个关键信息点。 “S&P Biotechnology Select Industry Index”...
Although it is close to a bilayer that can be found inside the bulk material, the real surface of III-V compound (which can be thought as a half-way to an isolated 2D sheet) demonstrates a 2 × 2 reconstruction with either one of the four group-III atoms missing (III-...
9.2.1.2.4 Overcurrent Threshold When choosing the resistor value for OC_ADJ, consider the peak current allowed under normal system behavior, the resistor tolerance, and the fact that the Table 2 currents have a ±10% tolerance. For example, if 6A is the highest system current allowed across...