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PCI is a useful method on the ocular biometry of children with repeatability higher than A-scan.

PC1测量儿童眼球生物参数稳定可靠，与A超的测量结果高度相关，可重复性高于A超。

The general form of solution for the non symmetric matrix A is given, the expression of optimal approximation solution is presented, and an algorithm for solving the problem is described. The total least squares problem with symmetric and bisymmetry constraints is discussed respectively. A sufficient condition for existence of solution is derived by use of the theory of matrix Ricaati equation. The general form of solution is given if the problem has a solution, and the expression of optimal approximation solution is presented. Some numerical examples are given.

对矩阵A是非对称情形，给出了解的一般表达式，证明了最佳逼近问题解的存在唯一性，并给出了其解的表达式，描述了求解问题的算法；讨论了带对称和双对称约束的总体最小二乘问题，利用Ricaati矩阵方程的理论得到了解存在的一个充分条件，分别对对称矩阵和双对称矩阵两种情形，给出了解的一般表达式，证明了最佳逼近问题解的存在唯一性，给出了其解的表达式，提出了求解这些问题的算法，并给出了数值例子。

The spraying granulation process of a 50 kt/a urea melt facility is described, including the control of biuret content, some key problems in the design of drying system and other equipment.

介绍5万t/a熔融尿素喷浆造粒装置的工艺，阐述固体尿素熔融过程中缩二脲的控制、干燥系统设计以及装置设计的一些注意事项。

Bladderwrack contains vitamins A, B1, B2, B3, B5, B12, C, D, E and K, and a wealth of minerals including calcium, copper, chlorine, iodine, iron, magnesium, manganese, nitrogen, phosphorus, potassium, sodium and zinc.

Bladderwrack含有维生素A，为b1，b2，B3中，B5，则维生素B12，C类，D，E和K，以及包括钙，铜，氯，碘，铁，镁，锰，氮，磷，钾，钠矿物财富和锌。

A "master policy" was a policy that provided blanket coverage for the same legal person's property and liabilities located in different places.

a "统括保单"指对同一法人位于不同地点的财产和责任进行统一承保的保单。

This paper describes briefly necessity of improvement of smelting process in Jinchang Smelter,proves that the blister copper production is better to be fixed at 60000-70000t/a after medification from point of view of heat balance of blowing and gas treating capacity of acid - making system and proposes a way to exploring potential in blister copper production capacity in the future.

本文简述了金昌冶炼厂熔炼工艺改造的必要性，从转炉吹炼的热平衡、制酸系统处理烟气能力等方面论证了改造后粗用规模以60－70kt／a为宜，并简要提出今后粗铜能力挖潜途径。

If block u is already in a block buffer, a-addr is the address of that block buffer.

如果区块 u 已经在一个区块缓冲区中， a-addr 是那个区块缓冲区的位址。

A DC bias of approximately 1.2V is present at this pin.A DC blocking capacitor is needed if the signal has a different DC level.

阿约1.2V的直流偏置在这个pin.A直流阻挡电容器，是目前需要的信号，如果有不同的直流电平。

For example, if you're a blood Type A, that means vegetables are your ideal food.

举个例子，如果你是A型，那一位着蔬菜是你的理想食物。

His fastball is 97 mph and he has a curveball, slider and change," said Rodriguez, who provided life in the ninth when he led off with a bloop single to right.

他的快速球达到时速 97 英哩，而且他还有一颗曲球，滑球与变速球，」A-Rod说，A-Rod在第九局无人出局时有一支偏右侧落在内、外野间的一垒安打。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。