The numerical results indicated that the mixing time decreases about linearly with increasing current intensity. The mixing time decreases first then increases with increasing current frequency and comes up to its minimum value at 30Hz. Applying the traveling magnetic field to the uptake or downtake when the exciting current intensity is 200 A at 10 Hz, the mixing time can be shortened by 9%~17%. With the operating conditions kept unchanged, shorter mixing time is available if applying the traveling magnetic field to the uptake instead of downtake, and the time can be shortened by 18%~26% if applying the magnetic field to both the uptake and downtake. Moreover, the mixing time decreases with increasing argon blowing flowrate, and the time comes down to its minimum value if the argon blowing flowrate is 1 600 NL/min. After the moment, the mixing time increases with argon blowing flowrate.

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Methods Seventy-five cases (102 eyes ) of PACG and fifty cases (100 eyes) of crowds with high degree danger were treated with combined laser technique, including laser peripheral iridectomy or argon laser peripheral iridoplasty.

對(duì)75例102眼PACG以及50例100眼PACG的高危人群，行聯(lián)合激光手術(shù)治療黄片免费一级，包括激光周邊虹膜切除術(shù)(laser peripheral iridectomy日韩中美精品中文视频在线播放， LPI)或聯(lián)合Argon激光周邊虹膜成形術(shù)(Argon laser peripheral iridoplasty， ALPI)免費看毛片視頻。

The Laser microprobe analysis shows that the argon isotope is evenly distributed in the muscovite. The preliminary conclusion is (1) muscovite in high-pressure metamorphic orthogneiss does not contain excess argon and can be the object for 40Ar/39Ar dating;(2) muscovite in the Qinglongshan eclogite contains large amounts of excess ...

由此得出的初步結(jié)論是：①高壓變質(zhì)的正片麻巖中的白云母中不含過剩Ar激情第一第二综合天天，這類礦物可以作為~(40)Ar/~(39)Ar同位素測(cè)年的對(duì)象；②青龍山榴輝巖中的白云母含大量過剩氬东北女人乱子视频，而作為其圍巖的超高壓正片麻巖中的白云母卻不含過剩氬杭州最疯狂一级毛片视频，這一事實(shí)證明了榴輝巖中白云母的過剩氬不是來自圍巖，而是榴輝巖自身繼承的国产一区二区三区手机在线观看。

In this research project, we have got a series conclusions:(1) there is no excess argon in the high-pressure white micas being in the orthogneiss;(2) The distribution of excess argon in eclogite is positive correlative with the ratio of Mg/, but negative with the ratio of Na/;(3) The in-situ analyses by using the method of laser probe 39Ar-40Ar show that the age radius from central to margin in a single grain of high-pressure white mica in eclogite;(4) There is no any evidence to prove that the excess argon in eclogite comes from fluid;(5) The excess argon in eclogite inherited from primitive rock during high-ultra high pressure metamorphism;(6) There is no excess argon in the eclogite when its surrounding rock is carbonate.

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As a result of that the initial ~(40)Ar/~(36)Ar ratio of intrusions is much higher than that ratio of present atmospheric argon, so it is suggested that there was excess of radiogenic argon in existence during the intrusions were formed.

等時(shí)線對(duì)應(yīng)的~(40)Ar/~(36)Ar初始比高于現(xiàn)今大氣Ar的比值人人扣B人人干B视频免费播放，表明花崗巖在固結(jié)時(shí)有繼承Ar存在国产精品色在线播放。

Nebula Series digital inverter welding machine Products include: manual welder, argon arc welding machine DC pulse argon arc welding machine, argon arc spot welding, melting pole gas shielded welding machine, gas shielded MIG pulse welding machine and six functional welding machine more than 30 varieties.

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In order to understand the amount of the argon gas entered the mold and the distribution of argon gas in the mold when blowing argon gas through stopper or upper nozzle, the water model with 1∶1 scale was built to investigate the effects of casting speed, argon flow rate, the manner of blowing argon, nozzle port angle and other parameters on the argon gas distribution in the different wide slab casting mold.

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Using solid wire and 75/25 argon/CO2 shielding gas, operators can weld at low amperages without experiencing arc outages, excess spatter or burn-through.

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