Bài tập kéo nén đúng tâm có lời giải

     
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Chỉ tồn tại những thành phần ứ..." data-index="8" src="https://image.colonyinvest.netcdn.com/ontapsbvl-160521090651/85/sc-bn-vt-liu-n-tp-v-l-thuyt-v-bi-tp-sc-bn-vt-liu-8-320.jpg?cb=1463822722" srcset="https://image.colonyinvest.netcdn.com/ontapsbvl-160521090651/85/sc-bn-vt-liu-n-tp-v-l-thuyt-v-bi-tp-sc-bn-vt-liu-8-320.jpg?cb=1463822722 320w, https://image.colonyinvest.netcdn.com/ontapsbvl-160521090651/95/sc-bn-vt-liu-n-tp-v-l-thuyt-v-bi-tp-sc-bn-vt-liu-8-638.jpg?cb=1463822722 638w, https://image.colonyinvest.netcdn.com/ontapsbvl-160521090651/95/sc-bn-vt-liu-n-tp-v-l-thuyt-v-bi-tp-sc-bn-vt-liu-8-1024.jpg?cb=1463822722 1024w" loading="lazy" id="slide-image-7" />

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