collapsible pallet
可收缩的棘齿轮的掣子
Brownian Ratchet with a Position-dependent Two-state Random Perturbation
具有随机两态势的布朗粒子摇摆棘齿模型
Cold Extrusion Process Simulation for Flywheel's Inner Ratchet and the Die Design;
飞壳内棘齿冷挤压工艺模拟分析及模具设计
Quantum-resonance ratchet in a kicked Bose-Einstein condensate
周期驱动玻色-爱因斯坦凝聚系统的棘齿效应
a hinged device that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward.
推动车轮向前或阻止向后移动的嵌在棘齿凹巢的铰链装置。
Coexisting of Periodic Attractor in Deterministic Underdamped Ratchets;
确定性欠阻尼棘齿系统中的周期吸引子共存现象
Inner ratchet's cold extrusion process design and numerical simulation
飞壳内棘齿冷挤压成形工艺设计及数值模拟分析
This one looks rather like a sponge: thousands of parallel channels perforate a thin wafer of silicon.
这个棘齿看起来比较像纱布：数以千计的平行孔道贯穿一片薄薄的矽晶圆。
a toothed wheel or rack engaged with a pawl that permits it to move in only one direction.
连接着棘爪的只能允许朝一个方向运动的齿轮或齿轮架。
a genus of echinoderms of the family Antedonidae; formerly called genus Comatula.
棘皮类海羊齿科的一属；以前被称为放射状海百合或海羊齿。
A mechanism consisting of a pawl that engages the sloping teeth of a wheel or bar, permitting motion in one direction only.
棘轮，棘爪一种包含合于转轮或长条倾斜性齿轮中的爪状物的机械，使轮仅向一个方向运动
Trauma to teeth, lips, and vocal cords and exacerbation of cervical spine injuries can also occur.
也能发生牙齿、嘴唇、声带的损失和颈椎棘突损伤的加重。
The study of rodents host infected echinococcosis in Gannan Tibetan Autonomous Prefecture
甘南藏族自治州啮齿类动物棘球蚴感染状况调查
A hinged or pivoted device adapted to fit into a notch of a ratchet wheel to impart forward motion or prevent backward motion.
掣爪，棘爪一种枢轴或转轴器械，能与齿轮缺口或齿间吻合来前进或防止后移
A protective covering, structure, or organ of an animal or a plant, such as teeth, claws, thorns, or the shell of a turtle.
防御器官动物或植物的防护层，结构或器官，如牙齿，爪子，荆棘或乌龟的壳
ratchet mechanism
棘轮机构，棘轮传动装置
straight-cut gear
直齿圆柱齿轮，正齿齿轮
Chromosome Research on Paa Boulengeri and Paa Yunnanensis (Ranidae: Paa);
棘腹蛙和双团棘胸蛙（蛙科：棘蛙属）染色体研究