金属：例如铅和汞，造成婴儿和儿童的神经损伤。
Metals: such as lead and mercury, cause neurological damage in infants and children.
但是这些金属会导致癌症及脑损伤。
而这种药物无法弥补已产生的大脑损伤，且药物本身存在风险，因为它们也会将有用的金属元素，如铁与锌一并剥离排出体外。
But the drugs cannot reverse brain damage that has already occurred, and they carry risks of their own because they also strip useful metals from the body, such as iron and zinc.
通过模拟有助人体、自然存在的金属元素，诸如钙、铁、锌，并结合相同的分子与蛋白质，铅会导致大脑损伤。
Lead causes brain damage by mimicking helpful metals found naturally in the body, such as calcium, iron and zinc, and binding with the same molecules and proteins.
铅这种重金属，也会污染水和土壤，而且，根据CCHE，铅几乎可以干扰到胎儿发育的各个方面，造成脑和肾的损伤。
This heavy metal, which can also contaminate water and soil, can interfere with nearly every aspect of fetal development, causing brain and kidney damage, according to the CCHE.
法是采用手工的吸锡抢或金属吸锡线，但是效率低、容易损伤板子和器件。
Method is a manual suction grab or metal tin tin absorption line, but low efficiency, easy to damage the board and device.
试验结果表明，焊缝金属具有比较好的塑性变形能力，焊缝的损伤值与材料的累积塑性应变呈线性关系。
The experimental results showed that weld metal had enough plastic deformation capacity, and its damage value was linear with the cumulative plastic strain.
阐述了返厂解体检查的情况，内部未发现损伤，但灭弧室和瓷套内有微量金属粉末，部分有灼痕。
There was no damage found inside, but there was a little of metal powder in the arc chamber and porcelain bushing and some of the powder has been burned.
本文提出一种新的热疲劳损伤判据，用以评估金属材料的热疲劳性能。
In this paper a new criterion for thermal fatigue damage was proposed to evaluate the thermal fatigue performances of metallic materials.
介绍了金属延性动态损伤的微孔生长模型的研究方法和一般内容。
The studying method and the general contents of microvoids growth models for dynamic ductile damage of metals are introduced and the newest models are evaluated.
如果必须将镀层上过渡段融合或切削掉来去除镀层的凸变边沿，工作人员必须严格控制，防止损伤临近的本体金属。
If the plating runouts are blended or machined to remove the abrupt plating edge, the techniques must be well controlled to avoid damaging the adjacent base metal.
去除热损伤的方法是仔细切削本体金属，然后，再做一次回火刻蚀检查，确保切削工作没有产生进一步的热损伤。
Heat damage generally is removed by carefully machining the base metal. Afterward, another temper etch inspection is done to ensure that the machining did not create more heat damage.
选用具有典型细观结构特征的球墨铸铁材料进行试验，探讨这种金属材料在各种三轴应力状态下的细观损伤破坏。
Nodular cast iron specimens with typical mesostructure are tested to study the meso damage evolution and failure mechanism at different triaxial stress states.
采用复合材料补片对损伤的金属飞机结构进行胶接修理，可以经济而有效地恢复结构的承载能力和延长结构的使用寿命。
It is most economical and effective to renew the load carrying capability and extend the service life by employing composite patches for repair of damaged metallic aircraft structures.
研究枯草杆菌芽孢重组修复试验中增加冷培养对金属化合物和间接致变物DNA损伤试验的影响。
To study the effect of spore rec assay with B. subtilis with an additional cold incubation to determine the DNA damage of metal and indirect mutagens.
结论常规使用金属胆道探子探查胆道，易导致胆总管下段或十二指肠后壁损伤。
Conclusions Routine use of metal probe for exploration the bile duct may cause injury of common bile duct or the posterior wall of duodenum.
由于复合材料的损伤模式与金属材料有很大的区别，因此，了解复合材料破坏判据对复合材料零部件的定寿具有决定性的作用。
Due to damage of composite difference from that of metal, so finding out destroy criterion of composite is important in determining life of helicopter.
要求足够的力量来把金属密封表面推进垫圈，但太大的力量会损伤垫珠表面。
Sufficient force is required to push the metal sealing surfaces into the washer; too much force will damage the bead surfaces.
结果18例眶内金属异物均能一次摘出，视力保持术前状态，无眶内肌肉、血管或神经等损伤。
Results 18 eyes of metal orbital foreign bodies were extracted by one time and vision remained unchanged, no orbital muscle, blood vessel or nerve was damaged.
焊接氢致裂纹是金属氢损伤在焊接中的一种表征。
Welding hydrogen induced crack (HIC) is a kind of hydrogen damage of metal during welding of high strength low alloy steel.
清洁活塞环槽或油环开缝，绝对不能损伤金属部分。
Be sure that you do not remove metal when cleaning ring grooves or oil slots.
最后从金属材料的电阻率和电子元件构成属性对构件的电阻损伤参量作了初步探索的研究。
Thereafter, the electrical resistance using for fatigue is given pilot study from the metallic resistor and properties of the electronic elements.
目视检查，无外观异常，表面无明显划痕、毛刺及其它机械损伤，外露金属部分无锈，其它限度根据样品确认。
Visual inspection the case have no visual abnormality, no obvious Nick, burr and other mechanical damage, outer metal have no rust. Use limit sample to check for any failures.
基于各向同性弹塑性损伤假定和应变等效假设，采用重复拉伸的试验方法，得到了焊缝金属的损伤演化规律。
Based on the adoption of elastoplastic damage theory and effective strain assumption, weld metal coupons were tested under repeated pull and their damage evolution law was determined.
本文对金属构件的损伤变量定义及典型的蠕变损伤模型作了总结，并概述了目前一些有代表性的蠕变损伤模型的研究工作。
This paper presents a review of the research on the description of the damage and damage models for metal materials and also discusses them respectively.
板和梁是冶金桥式起重机金属结构的基本组成单元，而这些金属结构的损伤多以板、梁的疲劳裂纹表现其故障形式。
Plate and beam is the element of over head traveling crane. Crack damage of plates and beams is the main fault forms of structure.
金属磁记忆诊断技术是目前唯一能预测部件早期损伤的新方法。
Magnetic memory metal diagnosis is the only means to predict the disfigurement.
目的：探讨基质金属蛋白酶- 9 (MMP - 9)在心肌再灌注损伤中的作用。
AIM: To study the roles of matrix metalloproteinase-9 (MMP-9) in the myocardial reperfusion injury.
目的：探讨基质金属蛋白酶- 9 (MMP - 9)在心肌再灌注损伤中的作用。
AIM: To study the roles of matrix metalloproteinase-9 (MMP-9) in the myocardial reperfusion injury.
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