timber size 中文意思是什麼
timber size
解釋
木材尺寸-
Items must be secured by means of min two 30mm steel straps. attched to the steel strapping shall be a timber placed of sufficient size to clearly show shipping mark
物品一定要用兩面兩根至少30mm的鋼條幫好。還要帶一塊上面有箱嘜的木板，木板尺寸大小以能清楚看到箱嘜為宜。 -
Firstly, the strain gauge method was used to measure the time difference of stress wave passing through two gauges adhered on the surface of test piece and also their main frequencies secondly, a 3 - component dynamometer was used to measure the resonant frequency of timber six kinds of full size timber were used for test
本研究旨在研發兩種新的應力波計測技術，其一為利用應變規來測定兩標點間之應力波傳遞時間差及試材之共振頻率，藉以計算試材之音速及動彈性系數，其二為利用三向動力計來測定試材之共振頻率。 -
Type nhss wire rope pulling hoist is widely suitable for use in bridge - construction, laying of large - size pipes, installation and adjusting of machinery an electric apparatus, and large reaction tower of petrochemical industry ; the installation and alignment of storage tanks ; erecting, fitting, welding and alignment of masts, steel concrete timber structures ; laying and translocating of rails and sleepers ; loading and unloading bulky heavy goods during transportation. cable tensioning ; demolishing of gallery supporting logs ; stacking forrestry wood ; and othersimilar cases. the hoist of this series is especially suitable for use in narrow working sites of limited space, where the job is high above the ground or in open air places, in tunnel of deep well, where no power for traction or lifting is available
Nhss型鋼絲繩手扳葫蘆可廣泛用於建築施工、大型管道鋪設、機電設備和石油化工大型反應塔、儲罐的安裝、校準、鐵塔及其它鋼木結構的豎立、拼裝焊接、校準、鐵軌、枕木的鋪設、移位、交通運輸中笨重貨物的裝卸、電線張緊、坑道支撐木的拆除、林區木材的集放等等，對于局部空間受到限制的狹窄工作場所、高空作業、野外作業、坑道、深井作業和無機電供能場所的各種牽引、提升作業、選用本系列產品尤為適宜。 -
In addition, mortise holes were made on the full - size timber, and resonant frequencies measured sequently
結果顯示，共振頻率隨榫槽數之增加僅略為減少。
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