The safety of the unsteady rock on stope roof should be estimated according to the geological structure and mining method,the stope must be checked and the unsteady rock must be handled according to the safety rules and manipulate rules.
应根据地质构造和采矿方法准确判断采场顶板松石,严格按照安全规程和操作规程进行检查采场和处理松石。
In the paper, 8 species (including form) belonging to 3 genus, 2 families of Lycopod spores are examined under SEM.
应用扫描电子显微镜对江西产２科５属８种（含变型）石松类植物的孢子形态进行了观察，结果表明，２科植物孢子形状相似，但外壁纹饰有差别，所观察的各属间、种间在孢子形态上亦有差异。
In the present paper, 8 species (including variety) belonging to 3 genus, 2 families of Lycopod spores are examined under SEM.
本文利用扫描电子显微镜对中国东北产的２科３属８种（含变种）石松植物的孢子进行了观察，对每个种的形态特征进行了描述。
Economic Analysis of Two Mechanical Treatments to Reduce Clubmoss Infestation in Saskatchewan Rangeland, Canada.;
两种机械处理控制石松侵害加拿大萨斯克彻温草场的经济效益分析
Shimeng realgar deposit in Hunan has the typical three floor texture modle:top is silicatite,breccia is on middle,orpiment and realgar is under,both of strata and structure control the deposit's forming.
湖南石门雄黄矿床，具有典型的三层结构模式，顶部为硅质岩，中部为角砾岩，下部为雌－雄黄矿体。
the jades mainly are the Dushan jade, turquoise, pseudocrocidolite, aventurite and agate etc.
玉石类有独山玉、绿松石、虎睛石、密玉和玛瑙等。
For example, relatively soft material, such as soil, gravel, loose or weak rock, can be removed by digging.
例如，像土壤、砾石和松石那样的松软剥离物，可挖掘剥离。
Gemological Feature and Color-Forming Mechanism of Yunxian Turquoise in Hubei Province;
湖北郧县绿松石宝石学及呈色机制研究
A plant of the genus Lycopodium, which includes the club mosses.
石松属植物一种石松属植物，包括石松
used in some classifications for the class Lycopsida: club mosses.
在某些分类中取代石松纲（theclassLycopsida）；石松。
An unconsolidated mixture of rock fragments or pebbles.
砾石岩石碎片或卵石的松散的混合物
rosin oil adultment
松香油的(石油)代用品
non-friable asbestos containing material
不松脆的含石棉物料
"Rapids hum over heaped rocks; But where light grows dim in the thick pines,"
声喧乱石中, 色静深松里;
"Cold currents rinse over jagged rocks,/ Evening breezes flow through billowing pines."
“石齿漱寒濑，松涛泻夕风”；
alternative designation for the class Lycopsida.
石松纲的另一个名称。
Diphaladine A,a New Lycopodium Alkaloid from Diphasiastrum complanatum(Lycopodiaceae)
Diphaladine A,扁枝石松中一个新的石松生物碱(英文)
Gravel is an unconsolidated mixture of rock fragments or pebbles.
砂砾是砾石岩石碎片或卵石的松散的混合物。
tufted spikemoss forming loose spreading mats; eastern North America.
成簇状的石松，做松散的席子；产于北美洲东部。
Employing C_5 Petroleum Resin as Rosin Extender of Cationic Rosin Size
C_5石油树脂做阳离子分散松香胶的松香补充剂
loose material (stone fragments and silt etc) that is worn away from rocks.
从岩石上磨损下来的疏松的石粒或碎屑。
Loose fragments or grains that have been worn away from rock.
岩屑从岩石上磨损下来的疏松的石粒或碎屑
She thumped on the rocky ground with both fists. It seemed to shake a little more and a crack appeared.
她紧握双拳，猛击岩石；岩石松动了，出现一条裂缝。