检测开挖的管槽尺寸，特别是水平高程、斜度是否满足设计要求，垫层是否夯实。
Check the dimensions of dug pipe channel, especially the grade level, inclination against design requirements, check to see whether the bedding is rammed hard enough.
将纵向涡强化换热技术应用于矩形管槽，研究以水为换热介质在过渡流状态下的换热效果。
Heat transfer in rectangular pipe with longitudinal vortex generators were investigated under transitional flow using water as working fluid.
应在所有管件处以及第12.2段中规定的一般跨距间隔处为托架、管槽及转角系统提供支撑。
Supports for tray, channel, and Angle systems shall be provided at all fittings and at the normal span intervals specified in paragraph 12.2.
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