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網球場地小知識

2012-12-12 09:05:17  來源:  字號:【69免費視頻:  69免費視頻:  69免費視頻:】  瀏覽:4

一片標準網球場地的占(zhan)地(di)面積不(bu)小于670平方米(mi)(mi)(mi)(南(nan)北(bei)長36.6米(mi)(mi)(mi)(南(nan)北(bei)長)×東西寬18.3米(mi)(mi)(mi)),這(zhe)一尺(chi)寸(cun)(cun)也是(shi)一片標準網球場(chang)(chang)地(di)四周圍擋網或室內建筑內墻面的凈尺(chi)寸(cun)(cun)。在(zai)這(zhe)個面積內,有效雙打場(chang)(chang)地(di)的標準尺(chi)寸(cun)(cun)是(shi):23.77米(mi)(mi)(mi)(長)×10.98米(mi)(mi)(mi)(寬),在(zai)每條端線后應(ying)留有余地(di)不(bu)小于6.40米(mi)(mi)(mi),在(zai)每條邊(bian)線外應(ying)流有余地(di)不(bu)小于3.66米(mi)(mi)(mi)。在(zai)球場(chang)(chang)安裝網柱,兩柱中心測量,柱間距是(shi)12.80米(mi)(mi)(mi),網柱頂(ding)端距地(di)面是(shi)0.914米(mi)(mi)(mi)。

標(biao)準尺(chi)寸  如(ru)果是兩片(pian)或兩片(pian)以上(shang)相連而(er)建的并行網球場地。相鄰場地邊線之間的距離不小于4.0米。如(ru)果是室內網球場,端(duan)線6.40米以外的上(shang)空凈(jing)高不小于6.40米,室內屋(wu)頂在球網上(shang)空的凈(jing)高不低于11.50米。

場地標線  場上縱(zong)橫交錯(cuo)的白(bai)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)都有各自的名稱,球(qiu)場兩端(duan)(duan)(duan)的界線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)稱為(wei)“端(duan)(duan)(duan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)”,球(qiu)場兩邊(bian)的界線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)稱之為(wei)“邊(bian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)”;在球(qiu)網(wang)兩側6.40米處的場內(nei)各畫一條(tiao)與端(duan)(duan)(duan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)平(ping)行的橫線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)為(wei)“發(fa)球(qiu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)”;聯結(jie)兩發(fa)球(qiu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)的中(zhong)(zhong)(zhong)點(dian)畫一條(tiao)與邊(bian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)平(ping)行的線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)稱“中(zhong)(zhong)(zhong)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)”;中(zhong)(zhong)(zhong)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)與球(qiu)網(wang)成“十(shi)”字形,將發(fa)球(qiu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)與邊(bian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)之間(jian)的地面分(fen)成四個相等的區域,稱為(wei)“發(fa)球(qiu)區”;在端(duan)(duan)(duan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)的中(zhong)(zhong)(zhong)心,向場內(nei)畫一條(tiao)垂直(zhi)于端(duan)(duan)(duan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)的短線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)稱為(wei)“中(zhong)(zhong)(zhong)點(dian)”。全場各區的丈量,除中(zhong)(zhong)(zhong)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)外都從各線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)的上沿計算,場上所有的線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)應是同一顏(yan)色(白(bai)色或黃色)

劃線方(fang)法(fa)  

(一)單打和雙打兼用的場劃線步驟

首先選擇球網位置,劃一長12.8米的直線(基準線),在中點處做一記號X,然后由此點向兩側丈量,定點如下:a、b點各距中點X4.11米,球網于此處與單打邊線相交。n、n點為單打支柱的位置,各距中點X5.03米。A、B點各距中點X5.49米,球網與此處與雙打邊線相交。N、N點為雙打網柱的位置,各距中點X6.40米。 在A、B點加釘,并分別與一量尺的一端相連,從A點心量16.18米成AC線(半場對角線),從B點量11.89米成BC線(半場邊線),然后拉緊AC、BC線,使這兩線相交于C點,即半場的一角。反向丈量可找出另一角D點。上述操作是否準確,可檢驗CD線的長度,這條端線應長10.97米。同時可標出中點J和單打邊線,c、d兩點分別距C、D點1.37米。 中線和發球線各點F、H、G均可分別在bc、XJ、ad線上距球網6.40米處劃出。 用同樣的方法再劃出球網另一邊的球場。
 
(二)單打專用場地劃線步驟
 a、b、c、d、外邊之線均不必劃。也可在a、b處加釘,分別與一量尺相連以代替A、B,再用14.46米和11.89米的長度,找出單打端線兩角c、d。網柱在n、n處,并應使用10米長的單打球網。 (三)單打、雙打兼用球場,若單打時掛著雙打球網,則須在n、n處用兩根1.07米高的支柱將網撐起,支柱的直徑或邊長不得超過7.5厘米,支柱的中心應距單打邊線外沿0.914米,這兩根網柱稱為“單一打支柱”。為了便于安置單打支柱,應在場地上的n、n點處用白點標出。

 

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