tunnels
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مقالات عامة
Dig safely when building sandcastles and tunnels this summer – collapsing sand holes can cause suffocation and even death
مجلة المذنب نت متابعات عالمية: While millions of Americans vacation on beaches every year to seek out sun, sand and…
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مقالات عامة
How do you build tunnels and bridges underwater? A geotechnical engineer explains the construction tricks
مجلة المذنب نت متابعات عالمية: Curious Kids is a series for children of all ages. If you have a question…
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مقالات عامة
In Gaza, the underground war between Israeli troops and Hamas fighters in the tunnels is set to begin
مجلة المذنب نت متابعات عالمية: The Israel Defense Forces have announced that they have reached the outskirts of Gaza City…
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