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A widely occurring iron oxide ore; a mixture of goethite and ''.

一种常见的氧化铁矿石，是针铁矿、赤铁矿和纤铁矿的混合物。

A widely occurring iron oxide ore; a mixture of goethite and ''.

一种常见的氧化铁矿石，是针铁矿、''。

A widely occurring iron oxide ore; a mixture of goethite and hematite and lepidocrocite.

一种常见的氧化铁矿石，是针铁矿、赤铁矿和纤铁矿的混合物。

In the field plot experiment, 6 kinds of reagents were set up for controlling grape downy mildew, and 2 reagents were set up for controlling grape powdery mildew, the medication was applied once every 7 d interval in initial stage of 2 diseases occurring, and applied 3 times totally, the statistics were made for diseased leaf rate and disease index after 7-10 d medication applying, and control effect was analyzed.

方法］在田间小区试验中，防治葡萄霜霉病设6种药剂，防治葡萄白粉病设3种药剂，于2种病害发生初期每隔7 d施药1次，共施3次，施药后710 d统计病叶率和病情指数，分析防治效果。

They are supergene minerals occurring in oxidized zones of uranium deposits and assuming green-yellow colors. This kind of minerals can be used as one of the mineral indicators in search for uranium deposits. They are mainly composed of ~(3-) and ~(2+), in which As and U are known as poisonous and harmful elements causing environmental pollution.

铀酰砷酸盐矿物是主要产出于铀矿床氧化带中比较特征的黄绿色表生矿物，是寻找原生铀矿床的重要矿物学标志，化学组成主要是[AsO4]^3-和[UO2]^2 ，其中As和U均是对环境造成极大危害的有毒或放射性有害元素。

It is either a band attached to the spore, as in horsetails, or a filament occurring among the spores, as in liverworts.

可以是连接到孢子上的一个丝圈，如长在杉叶藻内的，也可以是各孢子间的一条长丝，如在苔藓内的

China is undergoing the new一round rise,which has become a hot spot occurring in the wave ofglobalization.

中国正在重新崛起，这是当代全球化进程中一个引人注目的现象。

Occurring in 1989, Hurricane Hugo was one of the worst hurricanes of recent times.

发生于1989年的飓风&雨果&是近代造成最严重损失的飓风之一。

One can see this occurring today in the old consensus; the fields, which may be no larger than a room, are collapsing yet again; the heart region has been compromised due to nuclear energy and implosions leading to immune related diseases.

你可以观到这一点仍在今天的旧一致实相中发生：可能并不比一个房间大的能量场正在再次瓦解；心脏部位已由于核能量与核爆炸而被危及，带来了与免疫有关的疾病。

Based on the data of directional core drilling, FMI, routine cores and their thinsections, we have described the characteristics of H3 reservoir in Anpeng oil field, Miyang sag. By analyzing the stable isotopes of 20 fracture infillings and 5 groups of acoustic emission, combined with the studies of fracture characteristics and tectonic evolution, the fractures in H3 member were assigned to the regional fracture type which is characterized by the dominance of vertical or highangle extensional fracture, occurring in groups, relatively stable occurrences and out of the control of local nosetype folds. It has been recognized that there are 4 breaking stages, of which the 2nd one is the major stage.

根据定向取心、成像测井、常规岩心及薄片资料对安棚油田核三段储层天然裂缝特征进行分析的基础上，通过对20个裂缝充填物的稳定同位素测定，5组样品的声发射实验，结合岩心裂缝特征、地质构造历史等，确定出核三段地层中裂缝为区域性裂缝，以垂直或高角度张性缝为主，成组出现，产状稳定，不受局部鼻状构造控制，确定出裂缝有4个破裂期，主要破裂期为第二期。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。