查询词典 variation range

Selection of safety valve Decided by the operating pressure safety valve nominal pressure, the decision by the operating temperature range of temperature safety valve from the computed value of the decision constant pressure safety valve spring or a lever set pressure range, then the safety valve according to the decision to use media materials and structure type, and then calculated according to the safety valve Discharge valve throat diameter.

安全阀的选用由操作压力决定安全阀的公称压力，由操作温度决定安全阀的使用温度范围，由计算出的安全阀的定压值决定弹簧或杠杆的定压范围，再根据使用介质决定安全阀的材质和结构型式，再根据安全阀泄放量计算出安全阀的喉径。

The text obtains some data that caving span of immediate roof is 30m, caving span of main roof at first weighting is 42m and caving span of main roof at periodic weighting is 14m. Mining influence range is determined about 40m through numerical modeling, namely about three advance pillars were in the range of mining influence.

利用数值模拟得出煤柱采场直接顶的垮落步距为30m，老顶的初次来压步距为42m，老顶的周期来压步距为14m；通过模拟超前支承压力，确定了采动影响范围约为40m，即采场超前的三个煤柱都在影响之内。

Its apparent viscosity energy is at the range of 190～250 kJ/mol when its softening point is at the range of 190～220℃.

当软化点在190～220℃时，PACS的粘流活化能为190～260 kJ/mol。

Chirp scaling algorithm is considered more efficient and widely applicable when the bistatic SAR system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by Taylor expansion are so large that the algorithm could lose its precision.In such a case,an equivalent mono-static SAR range mode which has fewer errors than Taylor expansion with large squint angle is proposed to substitute the range history of bistatic SAR.Then bistatic SAR images with large squint angles are gotten by common Nonlinear CS algorithm.The effectivity of the method is verified by Matlab simulation.

在正侧视或小斜视情况下，CS算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性CS算法，实现了在大斜视角情况下的基于GPS反射信号的双基地SAR高精度成像，最后通过Matlab仿真进行了验证。

a system of along-track mode sar based on the gps is established.by seeing the gps signal as a chirp,chirp scaling algorithm of this mode with large squint angle is investigated.chirp scaling algorithm is considered more efficient and widely applicable when the bistatic sar system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by taylor expansion are so large that the algorithm could lose its precision.in such a case,an equivalent mono-static sar range mode which has fewer errors than taylor expansion with large squint angle is proposed to substitute the range history of bistatic sar.then bistatic sar images with large squint angles are gotten by common nonlinear cs algorithm.the effectivity of the method is verified by matlab simulation.

摘 要：建立了基于gps的顺轨sar系统模型，通过将gps信号等效为chirp信号，研究了在该模式下的大斜视角chirp scaling算法。在正侧视或小斜视情况下，cs算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性cs算法，实现了在大斜视角情况下的基于gps反射信号的双基地sar高精度成像，最后通过matlab仿真进行了验证。

The crankshaft shrinkage range employed in "Rule of the Construction of Sea-going Steel Ship" is selected from that of Lloyd's Rigister of Shpping used before 1965, in which the value of shrinkage range is determined only according to the size main journal diameter.

在我国&钢质海船建造规范&中，有关红套曲轴过盈量的规定是沿用1965年以前英国劳氐船级社的标准，过盈量的数值仅以套合轴颈的直径为基准来选取。

He is fluent in all kinds of close-range magic, especially in his "red-lipped kiss" of the General Assembly at the International Magic on the prize, and soon became a classic close-range magic.

他精通各类近景魔术，特别是他的《红唇之吻》在国际魔术大会上获奖后，很快就成为近景魔术的经典。

Color gamut is a shading pattern that can be expressed in the number of colors range area, also referred to as specific media such as screen displays, printers, output and business card printing and membership card making copies the appearance of a color range.

色域不离是指某栽表色模式所能表达的颜色数目所构成的边界地区，也指抽象介质如屏幕表现、打印机输入及制卡和会员卡制作复制所能表现的颜色边界。

F/A-37. Although specs are classified, it is believed to be Mach 3.5 (top speed in the Mach 4 range) super-cruise stealth fighter/bomber/interceptor with approximately a 4,000nm range.

虽然规格进行分类，它被认为是3.5马赫（最高速度在4马赫范围）超级巡航隐形战斗机/轰炸机/有大约4000海里范围内拦截。

CNN -- Pakistan successfully tested a short-range surface-to-surface ballistic missile with a range of 200 kilometers (124 miles) Saturday, the Pakistan Army said in a statement.

周六，巴基斯坦成功进行了一次短程地对地弹道导弹的实验，射程为200千米（124英里），巴基斯坦的军事部门在一个发布会上这样说。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。