行李箱要怎么选？选对材质很关键，让你PP/PC/ABS/铝镁合金不再 …
相信很多人在购买行李箱时都会对材质感到疑问，PP、PC、ABS一串英文根本不知道是什麽意思！但是行李箱材质非常重要，不只关係到空箱重量、坚固、防水程度，更有价格上的差异，小 …
34 Core Exercises Top Trainers Swear By - SELF
Nov 5, 2025 · Fitness pros share the core exercises they use to strengthen and stabilize the important muscle group that includes the abs, obliques, and lower back.
abs 塑料和 pp 塑料有什么差异？ - 知乎
ABS化学名称：丙烯腈-丁二烯-苯乙烯共聚物。 PP化学名称： 聚丙烯 。 2、燃烧后的性质 PP：燃烧快、容易，熔融滴落，火焰上黄下蓝，闻味道有石油气味。 ABS：缓慢软化燃烧，无滴 …
Best Abs Exercises: 31 Core Moves You Can Do at Home | SELF
Feb 2, 2019 · If you're looking for the best abs exercises you can do at home, try these 31 moves that work your entire core for better spinal stability and strength.
风扇正向和反向的区别是怎样的？ - 知乎
松日排气扇 推荐理由： 松日的这款排气扇使用的是全铜电机，含油轴承，使用寿命可达6年，材质使用的是ABS防腐蚀面板，机身纤薄，节能、省电，声音是45db，还是比较静音的。 在卫生 …
12 Standing Core Exercises That Will Fire Up Your Abs - SELF
Jun 2, 2025 · These standing core exercises prove you don't need to lie down to really work your abs—and you can do some of these moves with just your bodyweight.
九号选购攻略大全：九号电自，2025年看这篇就够了！
Oct 17, 2025 · 九号F2z 110 Max：新的外观，单ABS（目前九号里最便宜的ABS），更强的光照系统， 作为升级版，电池和屏幕区别不大，追求更好安全的高预算可入。
The Abs Exercises You Should Skip If You Have Lower Back Pain
Sep 16, 2017 · Here's why some abs exercises cause lower back pain, and what you can do to strengthen your core without feeling strains and pains in your back.
ABS 塑料脆裂是由什么原因引起的？ - 知乎
1.操纵温度：ABS塑料在各个温度中的特性也有所不同，所以需要控制加工、使用时的温度，以防止塑料过多变形制冷过快造成脆裂。 2.精准设计方案：在规划ABS塑料产品时，应选用适宜的 …
A 15-Minute No-Equipment Core Workout to Do at Home | SELF
Jan 18, 2019 · Try this no-equipment core workout the next time you're looking to do core workouts at home. Bonus: It also seriously works your arms!