kettle 解决方案介绍，英文版pdf ，内容简要： NOTE Throughout this book, you’ll find the terms “data integration” and “ETL” (short for extract, transform, and load) used interchangeably. Although technically not entirely correct (ETL is only one of the possible data
This low power DDS device is a numerically controlled oscillator employing a phase accumulator, a SIN ROM and a 10-bit D/A converter integrated on a single CMOS chip. Clock rates up to 25 MHz are supported
with a power supply from +2.3 V to +5.5 V.
package com.map;
public class GPSConverterUtils {
public static final String BAIDU_LBS_TYPE = "bd09ll";
public static double pi = 3.1415926535897932384626;
public static double a = 6378245.0;
public static double ee = 0.0066934
