可变化

The mineralogical form in which the iron occurs in the concentrates of zinc sulphide, and the effect of the iron on direct leaching of the concentrates are subjects of this paper.

铁闪锌矿的铁含量可在很大的范围内变化，其物理化学性质也随铁含量而变化，因此对精矿的湿法直接处理产生很大的影响。

The evolution process of landslide could be divided into 4 periods: beginning and accelerating period, quick-moving period, braking period and tamping period. The damage scope and accumulation extent are also simulated satisfactorily.

计算结果表明，根据位移和速度的变化，可把整个滑动过程分为4个阶段：即启动加速阶段、高速运动阶段、碰撞减速阶段和缓动夯实阶段；较准确的模拟了滑坡体的灾害影响范围和堆积规模；通过对滑体不同点位移和速度的分析，进一步明确了滑坡为牵引式滑坡和不同点在速度、位移和加速度上的变化规律。

For a constant impedance load or a constant current load, if regulating the secondary voltage by making the changer ratio higher, the primary voltage will get much lower while the load power is restoring, and the power will then lose balance. For a constant power load or a motor load, since the change of OLTC has no or little influence on the load power, the voltage of primary side almost has no change whether the tap operates or not. The influence on the voltage stability with respect to the dynamic restoring load which is sensitive to voltage is also discussed.

对于恒阻抗和恒电流型负荷，在变比上调恢复副边电压的情况下，负荷功率恢复，又使原边电压下降，可使系统功率失去平衡，而对于恒功率负荷和电动机负荷，OLTC的变化不会引起负荷功率的恢复，OLTC的变化对系统电压稳定有利；同时研究了对于一般电压敏感和具有动态恢复特性的负荷，反调分接头对电压稳定性的影响。

The importance of age as a social factor in language variation is strikingly demonstrated by children's language as it develops with age.

年龄作为语言变异中的社会因素，其重要性可从随着儿童年龄的变化而变化的儿童语言中表现出来。

At the same time to meet changes in planning, land use did not change; by the planning department's approval of the construction area of change is better than the original planning area of less than 20%; transferee a fresh increase in sexual intercourse to price and other conditions, the City Center land use can be directly collection of new construction area and price, fill out the "transfer contract changes that table", the directly to the relevant departments issued new land price to pay to prove the case.

与此同时，以满足变化的规划，土地利用没有改变；由规划部门批准的建筑面积的变化是优于原来的规划面积不少于20 ％；受让人新增加性交价格和其他条件，城市中心土地利用可直接收集新的建筑面积和价格，填写&转让合同变更表&的项目，直接向有关部门发布了新的土地的代价来证明的情况。

The results of Glass tank test experimental showed that there is no viscosity change in stimulation of acoustic wave on test of TCE.

音波刺激玻璃槽实验结果发现，音波刺激对纯TCE的黏滞度并无显著的影响，但对孔隙介质中之纯TCE则有较显著的影响，因此推论单纯音波能量不足以改变TCE的黏滞度，而孔隙介质中TCE黏滞度的变化，应致因於音波使介质颗粒间摩擦而导致TCE黏滞度的变化，此实验结果可对弹性波增加污染物移除效果之机制，提供一项有力证明。

On the experimental device of metallic membrane bulging, the measuring of in-plane true strain, transverse plastic strain at the pole of sheet, and the contour shape of sheet can be done. So that the relationship between true stress and true strain in the all deformation range of metallic sheets can thus be built up. Furthermore, the changing pattern of elasto-plastic and plastic Poisson's ratio can also be obtained.

在平膜鼓胀装置上，通过测量膜片极顶的面内真应变和横向塑性应变以及膜片的轮廓形状，并计人泊松比随变形过程发生的变化，可建立二向应力状态下箔材从弹性经塑性至破裂的整个变形范围内真应力和真应变的关系，同时还可以得到弹塑性泊松比和塑性泊松比的变化规律。

Under spraying humidification state, the parameters of JYPW-1 spraying axial fans for textile enterprises such as flow, total pressure, efficiency, shaft power and acoustic power level changing with water-air ratio were tested, and the performance parameter curve changing with water-air ratio was obtained. The approximate formula of its pneumatic performance in different water-air ratio condition were deduced which can be referenced for of selection and project application.

在喷雾加湿工况下，对纺织空调系统所用的JYPW-1型喷雾轴流通风机的流量、全压、全压效率、轴功率和比A声级噪声等性能参数随喷淋水气比的变化进行了测试，得到了喷雾风机性能参数随水气比变化的曲线，并整理出喷雾风机在不同水气比时，其气动性能的近似计算公式，可供喷雾风机选型和工程应用时参考。

The results show that the variation in elevation angle of roof beam can be controlled by the equilibrium jack in moving support and the stress at different parts can be adjusted according to the variation of the support load in coal caving process, greatly improving the adaptability of the 2-leg shield support in top-coal caving working face.

分析结果表明，通过平衡千斤顶可以控制移架过程中顶梁仰角的变化，并可调节支架各部位受力以适应放煤过程中顶梁外载的变化，从而提高了两柱式支架对放顶煤工作面围岩活动规律的适应性。研究结果对于现场操作及新架型的改进都有一定的指导作用。

The resonance amplitude and resonance frequency are studied with various gas flow rate in a cylindrical resonance cavity.

实验结果表明：共振幅度和共振频率随着气体流量的增加都呈指数衰减变化趋势，但共振幅度比共振频率的衰减速度快，都可反映气体流量的变化。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！