low strength

Flux entrapped in the joints is the principal cause of low strength or failure.

裂缝中封存有焊药是强度不足或断裂的主要原因.

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The surrounding rock of roadways in soft coal seam has low strength and bad stability.

软煤巷道围岩强度低,稳定性差.

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And on the other hand, drill pipes with low strength and optimum pretensioned torque and proper bending strength ratio should be selected, upset drill pipe should be used between drill collar and drill stem, and corrosion control and drill tools detection should be strengthened.

另一方面在保证提升能力前提下优先选用低强度钻杆，使用最佳预紧扭矩，选择合适的弯曲强度比，在钻艇和钻杆之间使用加重钻杆，控制腐蚀以及加强钻具的探伤与检验。

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Incase that part of the cement is replaced by grade ⅲ flyash, the concrete produced will have bad work-ability and low strength without using additives.

Ⅲ级粉煤灰取代部分水泥，在不掺外加剂的情况下，配制的破和易性差、强度低。

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The da/ dn curves for medium and low strength steels

中低强度钢的da/dN的研究

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The problems as low strength of masonry, segregation of mortar, delamination and the hollow and cracks in the roof leveling blanket are solved.

解决了砌体组合强度低、砂浆离析和分层现象及屋面找平层空鼓裂缝的问题。

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These materials exhibit low strength.

这些材料具有低强度.

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In offshore oil engineering installation, it is mainly to use low strength or medium strength steel as structural material. But under marine circumstance, those steel products suffer serious corrosion. And this may impair the reliability of these projects for long period operation.

在近海石油工程设施中主要采用低强度和中强度钢作结构材料，这类钢材在海洋环境中会发生严重腐蚀，威胁到这些设施长期工作的可靠性。

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Air vent design of low strength air-defense basement

低抗力人民防空地下室的通风口部设计

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Start-up of a pilot-scale HAR for treatment of low strength domestic sewage at ambient temperature

常温下HAR处理低浓度生活污水中试启动

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This paper briefly introduces construction technique for protection of bare reinforcement bars in suspended-extended projects, laying special stress on sealed reinforcement protection method, low strength concrete protection method, anticorrosive mortar protection method and corrosion inhibit or protection method.

本文简要介绍了停扩建工程裸露钢筋防护施工技术，主要有密封钢筋防护法，低标号砼防护法，阻锈砂浆防护法及阻锈剂防护法。

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But comparing to metal, owing to MC its low strength, modulus and heat distortion temperature, bad size stabilization, and high notch sensitivity, the usefulness of MC nylon is still limited.

然而与金属相比，MC尼龙存在强度、模量和热变形温度较低，尺寸稳定性差，对缺口冲击敏感，因而限制其应用的范围。

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Under the effect of the triggering force, the small and moderate earthquakes may easy accur in the low strength medium region, but in the high strength medium region the earthquake isn't easy to occur.

在介质强度低、岩石较破碎的地区就会发生较多的中、小地震，而在介质强度高、岩石较完整的地区就不容易发生中、小地震，这样就可能形成地震空区或空段。

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It can provide science evidence for testing low strength steel sheets using Leeb hardness tester.

探讨了里氏硬度测试值偏低的原因,对使用里氏硬度计测试低强度钢板硬度提供了科学依据.

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Formation mechanism of the low strength area for sinter with fixed basicity is described.

叙述了磁铁矿烧结过程中出现强度—碱度低凹区的机理.

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Low strength concrete can be replaced by regenerative concrete. In this way, better environment and social profit can be achieved.

建筑物中低强度混凝土可用再生混凝土代替，并能取得较好的环境经济和社会效益。

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The conclusions are as follows: ( 1) Because of bad physical mechanical property of rock mass, low strength, so many structural planes and minor faults which leads to weak strip after weathered, the homeostasis of the slightly weathered rock slope is serious.

得出以下主要结论：（1）浅变质岩风化层边坡岩体的物理力学性质差，强度低，坡体内构造面、小断层发育，风化后形成软弱带，导致浅变质岩风化层边坡自身稳定性差。

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Low strength concrete is caused by overdosing additives , curing improperly, being frozen in early stage etc.

在混凝土施工过程中,由于混凝土标号偏低、加剂掺加过量 、 水和养护不当 、 期受冻等原因,容易造成低强混凝土.

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This paper studies the reasons for low strength of post-placed aggregate concrete, and points o at that great bleeding is the main reason for low strength of the concrete.

对压浆混凝土存在的强度偏低现象进行了研究，指出了泌水量大是压浆混凝土强度较低的主要原因。

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The reasons for the low strength were unfilled folder and the pores in the weld.

强度低的主要原因是未能填充焊丝、焊缝中存在气孔等。

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