采暖期间

采暖期明显高于非采暖期,一周内TSP浓度变化为:周日﹥周六﹥周二﹥周一﹥周三﹥周四﹥周五。

seat heating

electron-heating steel bar header【机】

hardening forged, rolled material with no further heating beyond that

Joule heating【热】

heating rate【热】;rate of heating【热】

by applying impact, pressure after heating

heating element

soil heating