We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food.
我们想知道食物与被污染的表面接触的时间长短是否会影响细菌转移到食物上的速度。
The culprit may be weak back muscles, the type of surface on which you run, the shoes you wear, or the length of your running stride.
其原因可能是背部肌肉太弱，也可能是你奔跑的路面有问题，还可能是你穿的鞋不合适，也许是因为你的步幅不对。
That interlude gives the dolphin just enough time to drop its sponge, surface to get a breath, and dive again to snag the fish, most of which are about 12 centimeters in length.
趁着这个间隙，海豚会丢掉嘴中的海绵，浮出海面换气，接着马上潜入水里捕捉这些长度只有12cm的底栖鱼。
The ramp's entirely glazed internal surface ensures natural light floods into the living Spaces and provides views of the private courtyard along its length.
斜坡内完全光滑的玻璃表面，确保自然光线可以照进生活空间，并随着其长度提供私人庭院的景色。
And the impulse coupling coefficient is not sensitive to nozzle length and the distance between ignition zone and inner surface of nozzle.
而冲量耦合系数对点火区与聚光系统内表面的距离及喷管长度等参数并不十分敏感。
The content of the survey involved the volume density, surface and length densities.
内容涉及到各种组织的体积分数、面积密度、长度密度等。
The composition of the food and the surface on which it falls matter as much if not more than the length of time it remains on the floor, the study found.
这项研究发现，在细菌污染方面，食品与地面质材的组合与食品接触地面的时长几乎同等重要。
The rope canopy is strung up around the structural columns and held in place by metal fixings, creating a flexible surface that spans the length of the space.
这个绳索网串在构造的柱子之上并由金属固件固定，创造了一个跨越室内宽度的弹性表面。
The heat flux to slab surface of a walking beam reheating furnace along length of the furnace is computed, and total heat exchange factor is also calculated.
以某轧钢厂的一台步进梁式加热炉为例，计算了钢坯表面热流沿炉长方向的分布，并反算求解总括热吸收率。
The paper presents that the surface performance of fiber influence carding quality of nonwovens, such as denier, length, crimp frequency, oil content and moisture content.
分析了纤维的纤度、长度、卷曲度、含油率和含湿率等表面性能对非织造布梳理质量的影响。
The distal processes of 'the receptor cells contain rich cytoplasmic organelles and the free surface is covered with numerous microvilli which differ in length.
感受细胞的远侧突含有丰富的细胞器，游离面覆盖着许多长短不等的微绒毛。
With using absolute optical interferometer for measuring length of block gauge, it is necessary to solve the problem of phase jump for reflecting of light on its surface.
在用绝对光波干涉法测量量块长度时，必须解决光在量块表面反射时的位相跃变问题。
The entire body length of the component is in contact with the board surface.
整个组件本体长度与线路板表面完全接触。
First, curved surface is considered as the search field and the length of route as the objective function, thus the optimization problem of route is set.
首先，将整个曲面作为搜索空间，路径长度作为目标函数，设定了路径优化问题。
A method of three dimensional grid auto generation of the ship wet surface is presented in this paper, with the accumulative chord length cubic parameter spline theory being utilized.
运用累加弦长的三次参数样条函数理论，提出了一种实现船体三维湿表面网格自动生成的方法。
The coordinate value of corresponding profile may be obtained quickly so long as the length of the chord of arbitrary oblique section is computed, without solving the complex equation of the surface.
只要算出任意斜截面的弦长，就可以很快地得到对应外形的坐标值，而无需求解复杂的曲面方程。
Conclusion There was a progressive increase in renal length and width with age, the renal length and width positively correlated with the height, weight, body surface area of school-aged children.
结论学龄儿童正常肾脏长径和宽径随着年龄的增长而增长，且与身高、体重、体表面积呈正相关。
The theoretical results show that a smaller correlation length of screen surface and the narrowing of laser beam in scanning direction can reduce speckle contrast for this system.
通过分析结合模拟结果，认为减小屏表面的相关长度，在扫描方向压窄激光光斑可以减小该系统中的散斑对比度。
Slope length is one of the important geomorphologic factors affecting the surface runoff and sediment yield.
坡长是影响坡面径流和水流侵蚀产沙的重要地貌因素之一。
In this paper, this constraint is discussed. For the space curve with length constraint and the surface of revolution area constraint, algorithms and estimation of the error are given.
本文就此进行了讨论，对有弧长约束的空间曲线及有面积约束的旋转曲面问题，分别给出了相应的算法及误差估计。
The method of arc-length parameter space provides a good solution for the surface grid of complex geometry contour, and establishes the foundation for the further analysis carried out.
该方法为具有复杂几何外形的物体表面网格的生成提供了一个便利的途径，也为进一步生成三维空间网格奠定了基础。
The amount of oil drawn to the surface of the bean increases proportionately to the length of roasting time.
从咖啡豆中提取出来的香味是与烘焙时间成正比的。
The number of stems with glossy top cutting surface ( X ) was in highly significant correlation with topside bud length ( Y) .
参试材料的上切口平滑枝数（X）与顶侧芽长度（Y）均呈极显著相关关系。
Through selecting appropriate curve length of the reflection surface, it can reduce the reflection clutter of the near ground and improve the detection ability of low altitude.
合理选择反射区曲线的长度，可减少近地物反射的杂波，提高低空目标的探测能力。
Through selecting appropriate the curve length of the reflection surface, it can reduce the reflection clutter of the near ground and improve the detection ability of low altitude.
合理选择反射区曲线的长度，可减少近地物反射的杂波，提高低空目标的探测能力。
Based on the results of the pullout tests, the influences of the thickness of UHTCC cover, anchorage length, bar diameter and the shape of bars surface on anchorage behavior is studied.
根据拔出试件的试验结果，研究了保护层厚度、锚固长度、钢筋直径及钢筋表面形状这些参数对粘结锚固性能的影响。
Based on the results of the pullout tests, the influences of the thickness of UHTCC cover, anchorage length, bar diameter and the shape of bars surface on anchorage behavior is studied.
根据拔出试件的试验结果，研究了保护层厚度、锚固长度、钢筋直径及钢筋表面形状这些参数对粘结锚固性能的影响。
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