Đoàn thanh niên – Hội sinh viên Trường Cao đẳng Nghề Cần Thơ Tâm trong – Trí sáng – Hoài bảo lớn
Brand new atomic time clock possess replaced new sundial, hourglass and you will pendulum Internationally satellite routing has made brand new chronometer obsolete Correct aspect are a robust appliance to own public improvements, for this reason , efforts are usually getting made to enhance their energy and you may precision. …
Đọc tiếp »Brand new atomic time clock possess replaced new sundial, hourglass and you will pendulum
