对于超声不能明确诊断的孩子，可选择观察和重复超声波检查或CT扫描，当然这两者都有一定的风险。
In the child with a nondiagnostic ultrasound, options include observation and repeat ultrasound scan or CT scan, both of which have associated risks.
驾车时，每5- 10钞检查一遍后视镜。交通拥堵或路上车辆以不同速度行驶时，更要留意观察后视镜。
While driving along, check your mirrors every 5 to 10 seconds. Check your mirrors more often in heavy traffic or where vehicles are moving at different speeds.
在安装之前，应该对所有连接部件进行检查，看是否存在阻断、碎屑、刨削屑或其他可观察到的损坏情况。
All joint components should be inspected for any breaking, chipping, gouging or other visible damage before proceeding.
每个安全元素定义了仅在特定条件下，即当通过观察器检查时，才可见的一字母数字字符或其他独特图像。
Each secure element defines an alphanumeric character or other unique image that is visible only under certain conditions, i. e., when inspected through a viewer.
以裂隙灯显微镜检查睑板腺体、按摩睑板腺有无异常分泌物自腺口溢出、泪膜破裂时间(BUT)、主诉症状是否改善或消失为观察指标。
Observed tarsal gland, tarsal gland massage with or without abnormal secretions from the mouth overflow gland, tear film breakup time (BUT), whether symptoms improve or disappear.
以裂隙灯显微镜检查睑板腺体、按摩睑板腺有无异常分泌物自腺口溢出、泪膜破裂时间(BUT)、主诉症状是否改善或消失为观察指标。
Observed tarsal gland, tarsal gland massage with or without abnormal secretions from the mouth overflow gland, tear film breakup time (BUT), whether symptoms improve or disappear.
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