同样，如果发动机归你装配，也不会需要喷雾器，并被告知现在该“为外壳打底漆”了。
Similarly, if you were building the engine, you wouldn't want the airbrush, and be told you could now 'prime coat the surfaces of the frame'.
当室外钢结构需防火保护时，应采用专用的露天用防火涂料，并以防锈底漆打底。
When the outdoor steel structure fire protection, should use special open with fire retardant coating, and with anti rust primer.
当室外钢结构需防火保护时，应采用专用的露天用防火涂料，并以防锈底漆打底。
When the outdoor steel structure fire protection, should use special open with fire retardant coating, and with anti rust primer.
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