工字型鋼不論是普通型還是輕型的，由于截面尺寸均相對(duì)較高、較窄，故對(duì)截面兩個(gè)主袖的慣性矩相差較大，因此，一般僅能直接用于在其腹板平面內(nèi)受彎的構(gòu)件或?qū)⑵浣M成格構(gòu)式受力構(gòu)件。

I-steel whether ordinary or light, because the section size are relatively high and narrow, so the moment of inertia of the main secti of the two sleeve is large, therefore, generally only can be directly used in the web plane bending member or the of lattice stress components.

板材是指一般的壓型鋼板平板等,都是較薄的鋼板,通常都作為屋面或圍護(hù)墻等用型材是指熱軋的冷彎的如工字鋼H鋼C型鋼Z型鋼,通常都作主結(jié)構(gòu)用。

Plate refers to the general profiled steel plate, flat plate, etc., which are thin steel plates, usually used as roofing or retaining walls.

Profiles refer to hot rolled cold-formed ones, such as I-steel, H steel, C steel and Z section steel, which are usually used for main structure.

細(xì)木工板比實(shí)木板材穩(wěn)定性強(qiáng)，但怕潮濕，施工中應(yīng)注意避免用在廚衛(wèi)。

細(xì)木工板的加工工藝分機(jī)拼和手拼兩種，手工拼制是用人工將木條鑲?cè)電A板中，木條受到的擠壓力差，不能據(jù)切加工，只適宜做部分裝修的子項(xiàng)目，如做實(shí)木地板的墊層毛板等。

Blockboard is more stable than solid wood, but it is afraid of humidity. In ctruction, it should be avoided in kitchen and toilet.

The processing technology of the carpenter board is divided into two kinds. The manual spelling is to insert the wooden bar into the splint, the squeezing pressure of the wooden bar is poor, it can not be cut by cutting, it is only suitable for the subproject of partial decoration, such as the cushion coat of the solid wood floor.