In principle, turning given latitude and longitude coordinates into a point location is simple, but taking care of some of the practical contingencies makes it more complex than you might expect.
在原理上，将给定的纬度和经度坐标转换为点位置是很简单的，但是要考虑到一些特殊的实际情况会使它复杂化。
The author not only introduced the experiment, analysis and comparison in identifying of the pupa protein fiber, viscose and silk, but also put forward a more practical easy and simple system method.
笔者对蛹蛋白纤维、粘胶纤维、桑蚕丝的鉴别方法进行了试验、分析和比较，并提出了较为实用、简单易行的系统鉴别方法。
The author not only introduced the experiment, analysis and comparison in identifying of the pupa protein fiber, viscose and silk, but also put forward a more practical easy and simple system method.
笔者对蛹蛋白纤维、粘胶纤维、桑蚕丝的鉴别方法进行了试验、分析和比较，并提出了较为实用、简单易行的系统鉴别方法。
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