The history of the oil and gas industry in western Canada - at least since Leduc - can be traced through a handful of discreet eras, each with its own cadre of leaders that shaped the focus of endeavour and became the hallmarks of the industry.
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机译：BUZZ-YO-CHILD是一种袋装标签设备，其发明目的是在上学期间协助学生和家长。本发明将有助于使交通平稳地流过停靠降落区。大多数学校目前在放学期间面临许多问题，包括交通拥堵，学生坐在阳光下以及猜测父母何时开车经过。 Buzz Yo Child将在学校Wi-Fi系统上运行，并且家长将具有Buzz-Yo-Child应用程序，以将蜂鸣器警报发送到行李牌，以警告学生其父母在排队等候接送。
