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1·A chirp grating is placed inside a multimode interference (MMI) structure to shorten the device length and increase wavelength tolerance.

为了缩短组件长度并增加波长变动容忍度，我们在多模干涉结构里面旋转一个周期渐变光栅。

2·Then by taking the regular square prism as an example, the machining error is analyzed, and the relationship among the length of the lathe tool, the work dimension and the tolerance is obtained.

以车削正四棱柱为例，进行了误差分析，得到了刀具长度与工件尺寸和容许误差间的关系。

3·The root length is main parameter of root architecture with various important functions such as nutrient uptake, drought tolerance and yield.

而根的长度是根型的主要参数，对于养分的吸收，耐旱和作物的产量都有重要的作用。

4·Automatic correct the tolerance: if you input the actual value it can reach automatically correct the tolerance of length, opposite Angle line, snapping position and glass plate falling position.

误差自动校正：对板长误差。对角线误差。掰断位置误差及落板下落位置误差，只要输入实际值，可实现一次性自动校正。

5·The quantity and the length of embedded splice bar shall meet the design requirements and the related construction code. And the spacing tolerance of splice bar is not bigger than a piece of brick.

预埋拉结筋的数量、长度均应符合设计要求和施工规范的规定，留置间距偏差不超过一皮砖。

6·A new adaptive method about curve interpolation is proposed, which can automatically adjust step-length of motion and confine the contour error within a given tolerance.

本文给出了一种新型自适应曲线插补方法。 即根据弓高误差自动调整进给步长，同时将轮廓误差限定在允许范围之内的参数曲线实时插补方法。

7·With 24 maize inbred lines, by the injuring rates of sprout length and radical length were evaluated drought tolerance using PEG-6000 to simulating water stress method at germination stage;

本研究以24份玉米自交系为材料，在玉米萌发期通过PEG-6000（聚乙二醇-6000）模拟干旱胁迫的方法，以胚芽长与胚根长伤害率来评价萌发期的耐旱性；