分别从每个样条的顶部、底部、侧面和本体取样，通过甲醇交换，粗细集料的定量测定和在SEM中的背散射电子成像对试样进行检测。
Slices from the top, bottom, sides and bulk of each specimen were examined by methanol exchange, quantitative determination of coarse and fine aggregate and backscattered electron imaging in the SEM.
量油孔分带锁式和脚踏式，安装于油罐顶部，用于测量管内油品的标高和温度及取样等。
The oil hole zoning and pedal locks, set on the tank tops, used for measuring the elevation and oil tube temperature and sampling, etc.
为设计顶部平坦的间插取样光栅提供了理论依据。
It provides theoretical reference to design the interleaved sampled fiber grating in detail.
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