Spring hinge device, open angle medium; access freely;
弹簧铰链装置，开门角度适中；存取自如；
White space cannot follow the open angle bracket character '<' in an element tag.
在元素标记中左尖括号字符“<”之后不能有空白。
The open angle indicating device should display the open state of the valve gate exactly.
开度指示机构应准确地显示阀门的开启状态。
Objective To understand the blood supply condition of open-angle glaucoma "s optic nerve."
目的了解开角型青光眼视神经的血液供应情况。
Objective To understand the blood supply condition of open-angle glaucoma "s optic nerve."
目的了解开角型青光眼视神经的血液供应情况。
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