topping lift block, span block：千斤滑車

14 千斤索 topping lift | 15 千斤滑車 topping lift block, span block | 16 上千斤滑車 head span block

mid-span：中跨

上述規(guī)范定義了兩種類型的電源設備:端跨(End-span)和中跨(mid span). 端跨是指采用了嵌入式PoE技術的以太網(wǎng)交換. 這些交換通過同一線對來傳輸數(shù)據(jù)和電源--傳輸對1/2和3/6. 中跨裝置一般有6到24路通道,通過未用到的線對4/5和7/8來承載電源,

mid-span joint：中跨接頭

mid-span 中跨 | mid-span joint 中跨接頭 | mild steel barrier 軟鋼圍欄

mid-span moment：跨中彎矩;跨中力矩

mid-span joint 中跨接縫 | mid-span moment 跨中彎矩;跨中力矩 | mid-stream operation 中流作業(yè)

mid-span moment：跨中彎矩;跨中力矩kLi中國學習動力網(wǎng)

mid-span joint 中跨接縫kLi中國學習動力網(wǎng) | mid-span moment 跨中彎矩;跨中力矩kLi中國學習動力網(wǎng) | mid-stream operation 中流作業(yè)kLi中國學習動力網(wǎng)

mid-span load：跨中荷載

跨高比:span-to-depth ratio | 跨中荷載:mid-span load | 框架結構:frame structure

span roof：等斜屋頂

spar 桅桿 | span roof 等斜屋頂 | span of arch 拱跨

long span roof：大跨屋蓋

大跨屋蓋:large-span roof | 大跨屋蓋:long span roof | 玻璃采光頂:glass roof

span roof WESTBANK：等斜屋頂

spar WESTBANK 桅桿 | span roof WESTBANK 等斜屋頂 | span of arch WESTBANK 拱跨

double span trussed roof structure：雙跨屋架結構

double source ==> 雙源 | double span trussed roof structure ==> 雙跨屋架結構 | double span wire system ==> 雙拉線式