中背经理椅 Managerial mediumback chair
大洋中背 mid ocean ridge
中背压系统 intermediate back-pressure system
中背片 [昆] mediotergite
中背压泡沫分布系统 intermediate back-pressure foam distributing system
中背司理椅 Managerial mediumback chair
前中背片 [古生] anterior median dorsal plate
后中背片 [古生] posterior median dorsal plate
中背唇 median dorsal lip
中背板 [昆] dorsulum ; central dorsal plate
持续地下压小臂和手腕，提升肩膀，内收中背。
Continue to press your forearms and wrists into the floor, lift your shoulders, and draw your mid-thoracic spine in and up.
随着呼气，弯曲膝盖，向胸腔靠近，仍旧保持肩膀和中背的提升。
As you exhale, bend the knees and lower them toward your chest, but keep lifting your shoulders and mid-thoracic spine.
TRSV 颗粒可以在饲养过程中通过背侧和腹侧下腺分泌物释放到植物中。
TRSV particles can be liberated into the plant during feeding by the dorsal and subventral gland secretions.
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