查询词典 a trace

Then using a dry bar of soap and trace the outline of your face directly onto the mirror.

然后用干肥皂和微量元素的轮廓你的脸直接上镜。

A liquid chromatography-electrospray tandem mass spectrometry was developed for the determination of trace amount of abscisic acid in plant samples.

脱落酸是植物体内产生的一种植物激素，它参与调控植物的生理过程[1]，其主要作用是促进芽休眠、叶子脱落，抑制生长。

Through consults my courtyard department of pediatrics patient's medical record massively, my courtyard department of pediatrics medication has 4 kind of unreasonable phenomena: 1 antibiotics uses unreasonable; 2 allay a fever the analgesic to have the abusiveness phenomenon; 3 some doctors treat as the trace element and the Vitamin the absolute safety the nutrients; 4 some doctors take 10% glucose inoculation fluid the newborn commonly used basic fluid.

通过大量查阅我院儿科患者的病历，我院儿科用药存在4种不合理的现象：1抗菌药物使用不合理；2 解热镇痛药有滥用的现象；3 有些医师把微量元素及维生素当作绝对安全的营养药；4 有些医师把10%的葡萄糖注射液作为新生儿常用的基本液。

This morning, however, a policeman accidently found out the trace of the criminal.

然而就在今天早上，一个警察偶然发现了罪犯的踪迹。

In the acid medium, through using the stability of the BaSO4 colloid suspension, a turbidimetric method was established for the determination of trace sulfate radical in boric acid.

研究在酸性介质中，利用BaSO4胶体悬浮液的稳定性，通过光电浊度仪测定硼酸中微量硫酸根的方法。

Without any trace of fractures in its body, the bed is believed to be made out of a single agalwood block.

据信，这张没有任何损坏的古董床是由一整块沉香木制做而成的。

Features: 1 to the Al-Si eutectic alloy composite added a variety of heat-trace elements and, through orthogonal experimental design and optimize the use of rare earth elements - Modification of phosphorus and salt air brick bottom melting technology, access to the ideal Detroit microstructure - in high intensity, good plastic α-Al matrix on the distribution of the large size of coarse crystal silicon and Chinese characters or fish-bone-shaped iron phase, raising the Pistons at room temperature plastic and high temperature strength, lower raw material costs.

通过向共晶铝硅合金中复合添加多种微量热强元素，并通过正交试验优化成分设计以及采用稀土－磷盐复合变质处理和炉底透气砖熔炼技术，获取理想的活塞金相组织——在强度高、塑性良好的α-Al基体上分布尺寸较粗大的共晶硅和汉字状或鱼骨状铁相，提高活塞室温塑性和高温强度，降低原材料成本。

A large range of IRZ and intense fluctuating velocity area around the boundary of IRZ is measured and thought to be important to keep the excellent ignition and combustion characters of the new kind swirl burner. Together with temperature trace method, different structure and operation parameter of the burner are studied in this paper about their effects on turbulent and mixing characters of swirling jet. The structure variation includes different blade angle, use of central gear shape baffle, variable outer length and angle of lean primary air outlet, use of wedge outlet of lean primary air.

采用上述两种测量方法并结合热质比拟温度示踪的方法，本文对径向浓淡旋流煤粉燃烧器喷口结构和气流流动参数的变化对旋流流场的流动、混合、湍流脉动特性的影响进行了深入研究，研究了旋流叶片倾角大小、中心齿型扩锥、淡一次风扩口外伸长度和扩角的变化、淡一次风楔形扩口、直流二次风扩口角度的变化对出口旋转射流流动特性的影响，研究了一次风率和旋流二次风率运行参数变化的影响规律。

In order to make carrier-based airplane land on a carrier safely along an ideal flight path,the automatic carrier landing system must have the ability to trace the deck motion and restrain air turbulence.

为使舰载飞机沿着理想的下滑轨迹安全着舰，自动着舰系统必须具备跟踪甲板运动和抑制气流扰动的性能。

By 1973, 3M's new product development group an adhesive plaster, to put this plastic coating used on the reverse side of a trademark, and then glue on the glue in a coating of wax paper trace.

到了1973年，3M公司的一个胶布新品开发小组，把这种胶涂在常用商标的背面，再在胶液上粘上一张涂了微量蜡的纸片。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。