Watch out! You almost fell into the drainage hole.
小心！你差点掉到下水道里去了。
Simply use a piece of screen wire to cover the drainage hole.
简单地用网线（纱窗，防虫网）盖住排水孔就够了。
Study on numerical simulation of drainage hole of seepage field in underground engineering with implicit composite element method;
基于变分原理，研究渗流分析中模拟排水孔和不连续面的复合单元法。
According to seepage theory, the gas seepage from drainage hole along coal seam is studied by means of electrical simulation experiment.
根据渗流理论，本文对沿层抽放钻孔周围的瓦斯渗流问题进行了电模拟实验研究。
In this paper, we deduced the formula for the length calculation of drainage hole in which the water could not be frozen through perennial soil.
推导出通过多年冻土段不发生冻结泄水洞长度的计算公式。
Then using the superposition principle of well group, the analytic theory of single drainage hole is spread to multiple drainage holes in the element.
然后，应用井群的叠加原理，将单个排水孔的解析理论推广到单元内多个排水孔的情况。
The drainage hole is an important seepage control measure, so it is one of the key problems to simulate the effect of the drainage hole in the seepage analysis.
排水孔是重要的渗控措施，如何准确模拟排水孔的作用是渗流分析中的关键问题之一。
The tube body and the tube bottom of the round tube are fixed together, the tube body adopts a cylinder, and a water drainage hole is arranged at the tube bottom.
圆桶的桶体和桶底固定在一起，桶体形状为圆柱体，桶底上开 有透水孔。
A novel grass planting brick mainly comprises an upper brick surface, a bearing surface on the bottom part, an earth storage surface on the waist part, a grass planting hole and drainage holes.
一种新型植草砖，它主要包括上砖面、底部承重面、腰部储土面、植草孔、排水孔。
The use of pre buried in the structural layer of the drainage pipe hole as a deformation of the default seam to prevent the development of cracks.
行使预埋在结构层中的排水管孔作为变形预设缝，防止裂缝开展。
Result shows that drainage effectiveness of upward hole has an obvious advantage over that of plumb hole.
结果表明，仰孔的排水效果明显优于铅孔。
The effect of the drain hole on drainage and seepage pressure lowering is quantitatively studied with an engineering example.
定量地研究了排水孔孔径、孔深等因素对降低坝基渗透压力和排除坝基渗透水流的作用。
This simply means that each playing area of a hole is set on a relative high point, letting the natural drainage patterns fall between these high traffic spots.
简单的说，就是每一个打球区域都设置在相对较高的地方，让自然的排水从这些高活动区域中间流走。
Methods Clinical data of 19 cases of chronic subdural hematoma treated by improved burr hole and sealed drainage were retrospectively analyzed.
方法回顾性分析改进单孔闭式引流术治疗的19例慢性硬膜下血肿患者临床资料。
Objective To discuss the effects of Burr hole intubation urokinase drainage for treating hypertensive cerebral hemorrhage.
目的分析和探讨高血压脑出血用尿激酶溶凝引流治疗的效果。
Today I'll drill a little hole in the tooth for pus-drainage to stop the pain.
今天先在牙上钻个小洞将脓引流出来，这样可以止痛。
The enlargement of hole diameter increased the exposed area and pressure releasing range of bored coal seam, and raised gas drainage amount and discharging effect from holes.
通过扩大钻孔的直径，从而达到增加钻孔的煤层暴露面积和卸压范围，增大钻孔抽排瓦斯量，提高钻孔的抽排效果。
Based on engineering experience and combined with presently hole-sealed technology of gas drainage used in Tunlan mine, the reasonable hole-sealed length was determined by theoretical analysis.
以工程实验为基础，结合屯兰矿现有瓦斯抽放中封孔工艺，主要针对封孔长度，通过理论分析，确定合理的封孔长度。
The effects of dry degree of bottom-hole steam on producing result and effect of drainage velocity in production wells on production result are studied.
还研究了井底蒸汽干度对开发效果的影响和生产井排液速度对开发效果的影响。
The hole enlargement by high - pressure water jet provided a feasible technical way for raising gas drainage effect from coal seam in low permeability and improving the effect of outburst pre...
高压水射流扩孔为提高低透气性煤层的瓦斯抽放效果和扩大防突措施的效果提供了一个可行的技术途径。
The concrete piles being poured into deep hole act as the enclosure structure of deep pit. There are draining ditch and water gathering well inside the pit for drainage.
采用钻孔灌注桩作为深地坑的围护结构，在坑内设排水沟、集水井排水。
A net-shaped small hole is arranged on the seepage plate, and a longitudinal drainage groove and a groove which is vertically communicated with the drainage groove are arranged on the guided plate.
渗水板上设置 有网状小孔，疏导板上设置有纵向的排水凹槽和与排水凹槽相垂直的连通凹槽。
A net-shaped small hole is arranged on the seepage plate, and a longitudinal drainage groove and a groove which is vertically communicated with the drainage groove are arranged on the guided plate.
渗水板上设置 有网状小孔，疏导板上设置有纵向的排水凹槽和与排水凹槽相垂直的连通凹槽。
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