1)  the first work face
首采面
2)  first mining face under sea
海域首采面
1.
Based on specialties of mining coal under sea,prediction and measurement of height of leaking fissure zone of first mining face under sea were researched.
基于海域下采煤的特殊性,对海域首采面覆岩导水裂缝带高度的预测和实测技术进行了研究,得出了海域首采面的导水裂缝带高度,为制定海域开采上限和安全开采提供了科学依据。
3)  Initial mining level
首采中段
4)  first mining area
首采区
1.
Distribution of carnallite in salt bed of the first mining area in Qarhan Playa;
察尔汗盐湖首采区上盐层中光卤石分布
5)  first mined key seam
首采关键层
1.
Gas distribution of the mined-out side and extraction technology of first mined key seam relief-mining in gassy multi-seams of low permeability;
低透气煤层群首采关键层卸压开采采空侧瓦斯分布特征与抽采技术
6)  first coal mining face
首采工作面
补充资料:采桑女二首
【诗文】:
渡水采桑归,蚕老催上机。扎扎得盈尺,轻素何人衣。
采桑知蚕饥,投梭惜夜迟。谁夸罗绮丛,新画学月眉。



【注释】:



【出处】:
全唐诗:卷765-10
说明:补充资料仅用于学习参考,请勿用于其它任何用途。